American Journal of Managed Care最新文献

筛选
英文 中文
Facts about hospital-insurer contracting. 关于医院与保险公司签约的事实。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89502
Morgan Henderson, Morgane C Mouslim
{"title":"Facts about hospital-insurer contracting.","authors":"Morgan Henderson, Morgane C Mouslim","doi":"10.37765/ajmc.2024.89502","DOIUrl":"10.37765/ajmc.2024.89502","url":null,"abstract":"<p><strong>Objectives: </strong>To use publicly available price transparency data files to establish empirical regularities about hospital-insurer contracting.</p><p><strong>Study design: </strong>Retrospective analysis of 10 price transparency data files from HCA Healthcare.</p><p><strong>Methods: </strong>Cross-sectional qualitative analysis of 524 hospital-insurer contracts across 10 hospitals.</p><p><strong>Results: </strong>We ascertain 4 empirical regularities in these files. First, hospitals contract with many payers, ranging from 35 to 82 across the hospitals in the sample. Second, contract structure varies significantly within and across hospitals: Of the 524 contracts in our sample, the median contract contained 9 contract elements, whereas the mean contract contained 1285 contract elements. Third, most of the contracts in our sample contained multiple contracting methodologies (eg, both fixed fee and percentage of charges). Fourth, these contracts indicated substantial variation for the same service within and across hospitals, validating findings from analyses based on claims data and hospital price transparency files.</p><p><strong>Conclusions: </strong>Hospital-insurer contracts dictate the flow and structure of a significant portion of total health care expenditure in the US. Increased attention by both researchers and policy makers would lead to a greater understanding of this vital-yet understudied-element of the market for hospital services.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scaling care coordination through digital engagement: stepped-wedge trial assessing readmissions. 通过数字参与扩大护理协调:评估再入院情况的阶梯式楔形试验。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89498
Alexandra Polovneff, Neemit Shah, Abhishek Janardan, Erika Smith, Ivan Pasillas, Natalie Mortensen, Jeana M Holt, Melek Somai, Rodney Sparapani, Bradley Crotty
{"title":"Scaling care coordination through digital engagement: stepped-wedge trial assessing readmissions.","authors":"Alexandra Polovneff, Neemit Shah, Abhishek Janardan, Erika Smith, Ivan Pasillas, Natalie Mortensen, Jeana M Holt, Melek Somai, Rodney Sparapani, Bradley Crotty","doi":"10.37765/ajmc.2024.89498","DOIUrl":"10.37765/ajmc.2024.89498","url":null,"abstract":"<p><strong>Objectives: </strong>Transitions of care are pivotal, vulnerable times as patients are discharged from the hospital. Telephonic care coordination is standard care, but labor intensive. We implemented a patient postdischarge digital engagement (PDDE) program to scale coordination. We hypothesized that PDDE could reduce readmissions for low-risk patients and supplement care coordination for medium- and high-risk patients.</p><p><strong>Study design: </strong>Pragmatic, stepped-wedge cluster randomization trial with 5 implementation waves based upon primary care clinic region.</p><p><strong>Methods: </strong>All inpatient hospital discharges between March 2020 and November 2020 were stratified by readmission risk. Low-risk patients were offered access to PDDE, and moderate-risk and high-risk patients were offered access to PDDE and care coordination. Readmission was defined as an unplanned inpatient admission within 30 days from discharge. An intention-to-treat primary analysis was conducted using mixed-effects logistic regression clustering for wave; a treatment-on-the-treated analysis was also conducted to assess the impact among program users.</p><p><strong>Results: </strong>A total of 5490 patient discharges were examined (2735 control; 2755 intervention); 1949 patients were high risk, 2032 were medium risk, and 1509 were low risk. PDDE intervention did not significantly affect readmission among low-risk (95% CI, -0.23 to 0.90; P  = .23), medium-risk (95% CI, -0.14 to 0.60; P  = .21), and high-risk (95% CI, -0.32 to 0.64; P  = .48) groups after adjustment for time and patient factors. In a treatment-on-the-treated analysis, among patients who activated the PDDE program, readmission was also similar among the low-, medium-, and high-risk cohorts.</p><p><strong>Conclusions: </strong>Our study expanded resource-limited care coordination by offering low-risk patients a service they were unable to receive previously while having no impact on readmission. PDDE efficiently provided additional touch points between patients and providers.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Screening for health literacy, social determinants, and discrimination in health plans. 在医疗计划中筛查健康素养、社会决定因素和歧视。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89496
J Nwando Olayiwola, Candy Magaña, Bereket Kindo, Jill Soderquist, Faith Obanua, Fawwaz Haq, Jordyn Newcome, Angela Hagan, Stephanie Franklin, Tamara Smith, Juan Troy, Joanna Bugbee, William H Shrank
{"title":"Screening for health literacy, social determinants, and discrimination in health plans.","authors":"J Nwando Olayiwola, Candy Magaña, Bereket Kindo, Jill Soderquist, Faith Obanua, Fawwaz Haq, Jordyn Newcome, Angela Hagan, Stephanie Franklin, Tamara Smith, Juan Troy, Joanna Bugbee, William H Shrank","doi":"10.37765/ajmc.2024.89496","DOIUrl":"10.37765/ajmc.2024.89496","url":null,"abstract":"<p><strong>Objectives: </strong>Health inequities are frequently driven by social determinants of health (SDOH) and structural determinants of health. Our pilot sought to test the feasibility of screening for health literacy (HL) and perceived health care discrimination (PHD) through a live telephonic-facilitated survey experience with managed care patients.</p><p><strong>Study design: </strong>Cross-sectional study.</p><p><strong>Methods: </strong>Newly enrolled Medicare Advantage patients were screened for self-reported PHD, HL, and multiple SDOH using validated screening tools. Response rates for both HL and PHD screens were analyzed. A χ2 test for association between response to PHD screen and patient race was conducted. A weighted logistic regression model was used to understand how HL is associated with SDOH and demographic factors (age, gender, race/ethnicity, and income).</p><p><strong>Results: </strong>HL and PHD screening questions have different levels of feasibility. Administering the HL screen did not present a challenge, and patients felt comfortable responding to it. On the other hand, the PHD question had a lower response rate among patients, and some concierge advocates felt uncomfortable asking patients the question. Based on the self-reported HL data collected, low/limited HL is associated with patients who were Black, were low income, reported loneliness or isolation, or reported food insecurity. It is important to note that the study's findings are limited by the small sample size and that study results do not imply causality.</p><p><strong>Conclusions: </strong>It is feasible to collect self-reported HL data through a live telephonic format at the time of patient enrollment into a health plan. Health plans can leverage such screenings to better understand patient barriers for health equity-oriented interventions.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of electronic information exchange on repeat imaging during 30-day readmissions among Medicare beneficiaries. 电子信息交换对医疗保险受益人 30 天再入院期间重复成像的影响。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89493
Sara D Turbow, Steven D Culler, E Camille Vaughan, Kimberly J Rask, Molly M Perkins, Carolyn K Clevenger, Mohammed K Ali
{"title":"Impact of electronic information exchange on repeat imaging during 30-day readmissions among Medicare beneficiaries.","authors":"Sara D Turbow, Steven D Culler, E Camille Vaughan, Kimberly J Rask, Molly M Perkins, Carolyn K Clevenger, Mohammed K Ali","doi":"10.37765/ajmc.2024.89493","DOIUrl":"10.37765/ajmc.2024.89493","url":null,"abstract":"<p><strong>Objectives: </strong>We examined the association between electronic health information sharing and repeat imaging in readmissions among older adults with and without Alzheimer disease (AD).</p><p><strong>Study design: </strong>Cohort study using national Medicare data.</p><p><strong>Methods: </strong>Among Medicare beneficiaries with 30-day readmissions in 2018, we examined repeat imaging on the same body system during the readmission. This was evaluated between fragmented and nonfragmented (same-hospital) readmissions and across categories of electronic information sharing via health information exchanges (HIEs) in fragmented readmissions: admission and readmission hospitals share the same HIE, admission and readmission hospitals participate in different HIEs, one or both do not participate in HIE, or HIE data missing. This relationship was evaluated using unadjusted and adjusted logistic regression.</p><p><strong>Results: </strong>Overall, 14.3% of beneficiaries experienced repeat imaging during their readmission. Compared with nonfragmented readmissions, fragmented readmissions were associated with 5% higher odds of repeat imaging on the same body system in older adults without AD. This was not mitigated by the presence of electronic information sharing: Fragmented readmissions to hospitals that shared an HIE had 6% higher odds of repeat imaging (adjusted OR, 1.06; 95% CI, 1.00-1.13). There was no difference seen in the odds of repeat imaging for older adults with AD.</p><p><strong>Conclusions: </strong>Despite substantial investment, HIEs as currently deployed and used are not associated with decreased odds of repeat imaging in readmissions.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10936588/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of Medicare eligibility on diagnosis of chronic conditions. 医疗保险资格对慢性病诊断的影响。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89497
Sungchul Park, Felippe Ottoni Marcondes
{"title":"The effect of Medicare eligibility on diagnosis of chronic conditions.","authors":"Sungchul Park, Felippe Ottoni Marcondes","doi":"10.37765/ajmc.2024.89497","DOIUrl":"10.37765/ajmc.2024.89497","url":null,"abstract":"<p><strong>Objectives: </strong>The near-universal access to Medicare coverage at age 65 years improves access to care. However, little is known about whether Medicare eligibility promotes the diagnosis of chronic diseases. We examined the effects of Medicare eligibility at age 65 years on the diagnosis of chronic conditions.</p><p><strong>Study design: </strong>Using data from the 2007-2019 Medical Expenditure Panel Survey, we employed a regression discontinuity design.</p><p><strong>Methods: </strong>Our sample includes 43,620 individuals aged 59 to 71 years. Our primary outcomes were diagnoses of 19 chronic conditions. Using a regression discontinuity design, we exploited the discontinuity in eligibility for Medicare at age 65 years and compared individuals just before and after age 65 years.</p><p><strong>Results: </strong>Medicare eligibility at age 65 years led to significant increases in having any coverage or Medicare coverage: 8.8 percentage points (95% CI, 8.4-9.2) and 78.1 percentage points (95% CI, 74.9-81.4), respectively. However, there were no or small changes in the diagnosis of chronic conditions at age 65 years. Specifically, there were no significant changes in the diagnoses of 17 chronic conditions, and the changes were minor in magnitude. Significant changes were observed only in the diagnosis of stroke and cancer, at -0.6 percentage points (95% CI, -1.0 to -0.2) and -1.7 percentage points (95% CI, -2.8 to -0.6), respectively.</p><p><strong>Conclusions: </strong>Our findings suggest that Medicare coverage did not necessarily lead to increased diagnosis of chronic conditions. Further research is necessary to explore the underlying mechanisms behind this observation.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scaling palliative care requires adherence to best practices. 推广姑息关怀需要坚持最佳实践。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89505
Tina Basenese
{"title":"Scaling palliative care requires adherence to best practices.","authors":"Tina Basenese","doi":"10.37765/ajmc.2024.89505","DOIUrl":"10.37765/ajmc.2024.89505","url":null,"abstract":"","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139906849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of psychiatric follow-up frequency on outcomes and waiting times. 精神科随访频率对疗效和等待时间的影响。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89501
Martin Cousineau, Vedat Verter, Gustavo Turecki
{"title":"Impact of psychiatric follow-up frequency on outcomes and waiting times.","authors":"Martin Cousineau, Vedat Verter, Gustavo Turecki","doi":"10.37765/ajmc.2024.89501","DOIUrl":"10.37765/ajmc.2024.89501","url":null,"abstract":"<p><strong>Objectives: </strong>This study determined whether naturally occurring but significantly different outpatient follow-up frequencies are associated with clinical outcomes and service waiting times.</p><p><strong>Study design: </strong>Longitudinal retrospective study.</p><p><strong>Methods: </strong>This study was conducted in an outpatient setting. Participants consisted of 340 patients with major depressive disorder who were randomly assigned to 4 psychiatrists and were followed at a variable frequency defined by the clinician. Patients were assessed at baseline and at every visit with structured interviews and self-reported questionnaires. These groups were also compared according to their baseline characteristics, treatment, and appointment frequencies. Little's law was used to estimate the impact of modifying the appointment frequencies on the service waiting time.</p><p><strong>Results: </strong>The demographic variables, prescriptions, and depression severity at intake of patients across the 4 groups were similar. The mean times between appointments of the 4 groups were significantly different (87.0, 46.9, 67.9, and 61.5 days, respectively; P  < .001), but these differences in outpatient follow-up frequency were not associated with clinical outcomes (eg, mean last Quick Inventory of Depressive Symptomatology Self-Report score, 10.5, 10.0, 11.9, and 9.7; P  = .25). However, different outpatient follow-up frequencies had an estimated impact on waiting times for access to care; using Little's law, it was observed that the waiting list would be eliminated by reducing by 23.9% the follow-up frequencies of the 3 psychiatrists with the highest frequencies.</p><p><strong>Conclusions: </strong>Although variations in appointment frequencies do not appear to have a major impact on clinical outcomes, they could be managed to achieve significant improvements in the accessibility of the clinic.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genetic testing in cancer care: considerations for a condition-based approach. 癌症治疗中的基因检测:基于条件的方法的考虑因素。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89504
Andrew Hertler, Sadie Dobrozsi
{"title":"Genetic testing in cancer care: considerations for a condition-based approach.","authors":"Andrew Hertler, Sadie Dobrozsi","doi":"10.37765/ajmc.2024.89504","DOIUrl":"10.37765/ajmc.2024.89504","url":null,"abstract":"","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139906847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potential inequities in access to in-person SHIP counseling services. 在获得上门 SHIP 咨询服务方面可能存在的不公平现象。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89500
Melissa M Garrido, Allison Dorneo, Michael Adelberg, David Biko, Paul R Shafer, Austin B Frakt
{"title":"Potential inequities in access to in-person SHIP counseling services.","authors":"Melissa M Garrido, Allison Dorneo, Michael Adelberg, David Biko, Paul R Shafer, Austin B Frakt","doi":"10.37765/ajmc.2024.89500","DOIUrl":"10.37765/ajmc.2024.89500","url":null,"abstract":"<p><strong>Objectives: </strong>Counseling and education on Medicare coverage options are available through the federal State Health Insurance Assistance Program (SHIP), but little is known about the population that SHIP reaches.</p><p><strong>Study design: </strong>Cross-sectional study.</p><p><strong>Methods: </strong>Using a novel data source on SHIP counseling site locations, we characterized the availability of in-person SHIP counseling by zip code tabulation area (ZCTA) and used linear regression and t tests to evaluate whether SHIP counseling sites are disproportionately located in higher-income communities.</p><p><strong>Results: </strong>Our sample included 1511 SHIP counseling sites. More than half (63%) of the localities in our sample have a SHIP site within the ZCTA or county. Twenty-four percent do not have a SHIP site within the county but have one in an adjacent county. The remaining 13% do not have a nearby SHIP site. There is a disproportionate number of individuals eligible for Medicare in localities without a SHIP site. Moreover, the population living in areas without in-person SHIP sites is more likely to have low income and fewer years of education than the population living in areas with a SHIP site.</p><p><strong>Conclusions: </strong>These results suggest that there are areas where in-person SHIP service expansion or other additional navigation support may be warranted.</p>","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139934056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How real-world evidence can spur collaboration and changes in oncology. 真实世界的证据如何促进肿瘤学领域的合作与变革。
IF 2.5 4区 医学
American Journal of Managed Care Pub Date : 2024-02-01 DOI: 10.37765/ajmc.2024.89506
Zhaohui Su
{"title":"How real-world evidence can spur collaboration and changes in oncology.","authors":"Zhaohui Su","doi":"10.37765/ajmc.2024.89506","DOIUrl":"10.37765/ajmc.2024.89506","url":null,"abstract":"","PeriodicalId":50808,"journal":{"name":"American Journal of Managed Care","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139906848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信