Global & Regional Health Technology Assessment最新文献

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What is needed to successfully implement the EU HTA Regulation enabling broad patient access in Europe. 成功实施欧盟HTA条例,使欧洲患者能够广泛获得所需的条件。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2025-01-16 eCollection Date: 2025-01-01 DOI: 10.33393/grhta.2025.3354
Iga Lipska, Francois Meyer, Pier-Luigi Canonico, Herbert Altman, Oriol Solà-Morales
{"title":"What is needed to successfully implement the EU HTA Regulation enabling broad patient access in Europe.","authors":"Iga Lipska, Francois Meyer, Pier-Luigi Canonico, Herbert Altman, Oriol Solà-Morales","doi":"10.33393/grhta.2025.3354","DOIUrl":"https://doi.org/10.33393/grhta.2025.3354","url":null,"abstract":"<p><p>There has been a lot of discussion on the technical aspects of the soon to be implemented European Union's Health Technology Assessment (EU HTA) regulation. However, there has been limited discussion on the implementation aspects and the potential limitations from a policy perspective. In May 2024, a group of HTA experts with previous policy responsibilities met in Rome to propose some policy aspects to be considered. As a result of the discussion, several proposals were made. Building mutual trust, improving collaboration and engaging all relevant stakeholders seems a must. Equally important are the communication aspects, and ensuring equal commitment by all parties, allocating the appropriate incentives at all levels. Finally, it is noted that the EU HTA regulation has to be seen from the perspective of a wider policy change within the large EU legal framework.</p>","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"12 ","pages":"7-8"},"PeriodicalIF":0.4,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11744311/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
La durata delle procedure di negoziazione di prezzo e rimborso in Italia nel periodo 2021-2023 è stata indipendente dal prezzo dei medicinali. 意大利2021-2023年期间的价格谈判和偿还程序的期限与药品价格无关。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2025-01-15 eCollection Date: 2025-01-01 DOI: 10.33393/grhta.2025.3259
Raffaella Cocciolo, Paola Turella, Daniela Pilunni, Pierluigi Navarra
{"title":"La durata delle procedure di negoziazione di prezzo e rimborso in Italia nel periodo 2021-2023 è stata indipendente dal prezzo dei medicinali.","authors":"Raffaella Cocciolo, Paola Turella, Daniela Pilunni, Pierluigi Navarra","doi":"10.33393/grhta.2025.3259","DOIUrl":"https://doi.org/10.33393/grhta.2025.3259","url":null,"abstract":"","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"12 ","pages":"1-6"},"PeriodicalIF":0.4,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11736643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 economic burden of post-endoscopic retrograde cholangiopancreatography (ERCP) procedure infections in Italy. 意大利内窥镜逆行胆管造影(ERCP)手术后感染的经济负担。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-12-31 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3186
Paolo Sciattella, Annarosa Fornero, Susanna M A Giordano, Claudio G De Angelis, Francesco Cattel
{"title":"The economic burden of post-endoscopic retrograde cholangiopancreatography (ERCP) procedure infections in Italy.","authors":"Paolo Sciattella, Annarosa Fornero, Susanna M A Giordano, Claudio G De Angelis, Francesco Cattel","doi":"10.33393/grhta.2024.3186","DOIUrl":"https://doi.org/10.33393/grhta.2024.3186","url":null,"abstract":"<p><strong>Introduction: </strong>The infections of multidrug-resistant organisms (MDROs) associated with duodenoscopes during endoscopic retrograde cholangiopancreatography (ERCP) procedure have become a significant cause for concern, especially in fragile patients. While the clinical impacts of these infections are well-documented, their economic implications remain underexplored. This study assesses the incidence and economic burden of post-ERCP infections in Italy using an administrative database.</p><p><strong>Methods: </strong>We conducted a retrospective observational study using administrative databases from A.O.U. Città della Salute e della Scienza di Torino. The study included all patients who underwent their first inpatient ERCP between 2018 and 2021. Infections were identified using ICD-9-CM codes for <i>Pseudomonas aeruginosa</i>, <i>Clostridium difficile</i>, <i>Escherichia coli</i>, <i>Klebsiella</i> spp., and <i>Staphylococcus aureus</i>. A 1-year follow-up was defined in order to estimate healthcare resource utilization and related costs, including readmissions, drug prescriptions, and outpatient specialist and laboratory services.</p><p><strong>Results: </strong>The study included 686 inpatient ERCP cases, an overall infection rate of 4.2% was observed. Higher infection rates were observed in women (4.6%), patients over 70 years old (4.6%), emergency admissions (5.1%), and transplant patients (19.1%). The average hospital stay doubled for infected patients (24.3 vs. 11.3 days; p=0.001). Post-ERCP infections led to a 28% increase in average costs (€12,256 vs. €9,561; p=0.048). With an annual volume of 25,000 ERCP procedures, post-ERCP infections in Italy contribute approximately €2.9 million in additional direct costs per year.</p><p><strong>Conclusion: </strong>Post-ERCP infections impose substantial financial burdens on the healthcare system, underscoring the critical importance of implementing cost-effective prevention strategies to mitigate this public health threat in Italy.</p>","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"258-264"},"PeriodicalIF":0.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11736644/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analisi di costo-efficacia di brentuximab vedotin in combinazione con doxorubicina, vinblastina e dacarbazina (AVD) in pazienti adulti affetti da linfoma di Hodgkin in stadio IV. 在患有第四阶段霍奇金淋巴瘤的成年患者中,brentuximab vedotin与多克西比星、温布拉汀和达卡巴嗪(AVD)结合进行成本效益分析。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-12-10 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3167
Andrea Marcellusi, Chiara Bini, Francesco Saverio Mennini, Silvia Ripoli, Laura Fioravanti, Victoria Federico Paly, Alexa Lina Molinari, Paolo Morelli, Stanimira Krotneva, Shujun Li
{"title":"Analisi di costo-efficacia di brentuximab vedotin in combinazione con doxorubicina, vinblastina e dacarbazina (AVD) in pazienti adulti affetti da linfoma di Hodgkin in stadio IV.","authors":"Andrea Marcellusi, Chiara Bini, Francesco Saverio Mennini, Silvia Ripoli, Laura Fioravanti, Victoria Federico Paly, Alexa Lina Molinari, Paolo Morelli, Stanimira Krotneva, Shujun Li","doi":"10.33393/grhta.2024.3167","DOIUrl":"10.33393/grhta.2024.3167","url":null,"abstract":"","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"248-257"},"PeriodicalIF":0.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11633240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142812873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 1-year per-patient cost of therapy administration analysis of mosunetuzumab and tisagenlecleucel in relapsed or refractory follicular lymphoma patients receiving two or more lines of systemic therapy. 在接受两种或两种以上系统治疗的复发或难治性滤泡性淋巴瘤患者中,mosunetuzumab和tisagenlecleucel的1年每位患者治疗成本分析。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-12-09 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3170
Marco Bellone, Alice Sabinot, Alessandro D'Arpino, Emanuela Omodeo Salè, Daniela Ghislieri, Lorenzo Pradelli
{"title":"A 1-year per-patient cost of therapy administration analysis of mosunetuzumab and tisagenlecleucel in relapsed or refractory follicular lymphoma patients receiving two or more lines of systemic therapy.","authors":"Marco Bellone, Alice Sabinot, Alessandro D'Arpino, Emanuela Omodeo Salè, Daniela Ghislieri, Lorenzo Pradelli","doi":"10.33393/grhta.2024.3170","DOIUrl":"10.33393/grhta.2024.3170","url":null,"abstract":"<p><strong>Objective: </strong>A per-patient cost of therapy administration model was developed to estimate the cost of mosunetuzumab vs. tisagenlecleucel in patients with relapsing or refractory follicular lymphoma (R/R FL) receiving two or more lines of systemic therapy (3L+) from both the Italian hospital and societal perspectives.</p><p><strong>Methods: </strong>A per-patient total cost of therapy administration model was developed to compare the resource consumption of two treatments - mosunetuzumab and tisagenlecleucel. The model considered direct costs such as healthcare labor costs for drug preparation and administration, non-drug consumable costs, and drug purchase. Indirect costs such as patient and caregiver's loss of productivity, transportation, and relocation were also considered. The unit costs and resource use data were retrieved from literature and standard Italian tariffs. To appraise the impact of patients' residency on access-to-care and out-of-pocket expenses, three scenario analyses were conducted.</p><p><strong>Results: </strong>Over 1 year, mosunetuzumab costs approximately one-fourth of tisagenlecleucel per patient. The base-case scenario showed a hospital cost reduction of €158,870 per patient with mosunetuzumab, increasing to €161,974 when including societal costs. Scenario analyses for the societal perspective estimated cost differences of -€161,170, -€166,507, and -€166,811 for scenarios A, B, and C, respectively. Sensitivity analysis indicated that tisagenlecleucel's price had the greatest impact on cost differences, followed by mosunetuzumab's price.</p><p><strong>Conclusions: </strong>This analysis identifies mosunetuzumab as an accessible therapeutic option for 3L+ R/R FL patients in Italy. Future research should collect real-time data and evaluate long-term outcomes.</p>","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"239-247"},"PeriodicalIF":0.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11629369/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142806722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impatto economico di dapagliflozin nella gestione della malattia renale cronica in Italia: risultati di un modello di micro-simulazione. 意大利达格利弗洛津对慢性肾病管理的经济影响:微观模拟模型的结果。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-12-02 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3309
Roberto Ravasio, Andrea Marcellusi, Luca de Nicola
{"title":"Impatto economico di dapagliflozin nella gestione della malattia renale cronica in Italia: risultati di un modello di micro-simulazione.","authors":"Roberto Ravasio, Andrea Marcellusi, Luca de Nicola","doi":"10.33393/grhta.2024.3309","DOIUrl":"10.33393/grhta.2024.3309","url":null,"abstract":"","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"231-238"},"PeriodicalIF":0.4,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11615928/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modello predittivo di policy per una migliore gestione della broncopneumopatia cronica ostruttiva: implicazioni economico-organizzative nel contesto sanitario italiano. 更好地管理慢性阻塞性肺病的预测政策模型:对意大利医疗保健的经济和组织影响。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-11-20 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3114
Debora Antonini, Fausto De Michele, Claudio Micheletto, Dejan Radovanovic, Michele Basile, Eugenio Di Brino, Agostino Fortunato, Valentina Donati, Filippo Rumi
{"title":"Modello predittivo di <i>policy</i> per una migliore gestione della broncopneumopatia cronica ostruttiva: implicazioni economico-organizzative nel contesto sanitario italiano.","authors":"Debora Antonini, Fausto De Michele, Claudio Micheletto, Dejan Radovanovic, Michele Basile, Eugenio Di Brino, Agostino Fortunato, Valentina Donati, Filippo Rumi","doi":"10.33393/grhta.2024.3114","DOIUrl":"10.33393/grhta.2024.3114","url":null,"abstract":"","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"223-230"},"PeriodicalIF":0.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11580476/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142686743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A cost-effectiveness analysis of Navina Smart on adult patients affected by neurogenic bowel dysfunction. Navina Smart 对神经源性肠功能障碍成年患者的成本效益分析。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-11-18 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3168
Matteo Ruggeri, Alessandro Signorini, Silvia Caravaggio, Gabriele Righi
{"title":"A cost-effectiveness analysis of Navina Smart on adult patients affected by neurogenic bowel dysfunction.","authors":"Matteo Ruggeri, Alessandro Signorini, Silvia Caravaggio, Gabriele Righi","doi":"10.33393/grhta.2024.3168","DOIUrl":"10.33393/grhta.2024.3168","url":null,"abstract":"<p><strong>Background and objectives: </strong>The objective of this study is to evaluate the economic impact of the device Navina Smart on patients affected by neurogenic bowel dysfunction and dependent on transanal irrigation within the Italian context. This study employs the perspective of the Italian National Health Service.</p><p><strong>Methods: </strong>The analysis was conducted through a Markov model, comparing two scenarios: standard bowel care vs. transanal irrigation. The model operates on a 30-year time period. The results were reported in terms of net monetary benefit.</p><p><strong>Results: </strong>Transanal irrigation therapy was dominant in all scenarios with lower costs and higher effectiveness. The population was assumed to be composed of 1,000 subjects. Setting the willingness to pay at €35,000.00/QALYs (quality-adjusted life years), the analysis yielded a net monetary benefit of €81,087 and cost savings of €66,101 per patient over 30 years.</p><p><strong>Conclusion: </strong>The results of this study substantiate that transanal irrigation therapy treatment employing the Navina Smart device can significantly benefit patients suffering from neurogenic bowel dysfunction by relieving their symptoms. In addition, this therapy offers important cost savings for the Italian National Health Service by reducing resource utilization.</p>","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"214-222"},"PeriodicalIF":0.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579649/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142686742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Survival, treatment duration and costs of patients with prostate cancer treated with triptorelin in Italy: a study of administrative databases. 意大利接受曲普瑞林治疗的前列腺癌患者的生存率、治疗时间和费用:一项行政数据库研究。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-11-11 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3055
Orazio Caffo, Gaetano Facchini, Luca Degli Esposti, Valentina Acciai, Giorgio Mauri, Paola Mazzanti, Giuseppe Fornarini
{"title":"Survival, treatment duration and costs of patients with prostate cancer treated with triptorelin in Italy: a study of administrative databases.","authors":"Orazio Caffo, Gaetano Facchini, Luca Degli Esposti, Valentina Acciai, Giorgio Mauri, Paola Mazzanti, Giuseppe Fornarini","doi":"10.33393/grhta.2024.3055","DOIUrl":"https://doi.org/10.33393/grhta.2024.3055","url":null,"abstract":"<p><strong>Background: </strong>Several data support the efficacy/effectiveness, safety and favorable impact on quality of life of triptorelin treatment in patients with prostate cancer. However, little evidence is available concerning triptorelin use in the long term.</p><p><strong>Methods: </strong>We analyzed data on triptorelin treatment in patients with prostate cancer in an integrated Italian administrative database, covering around 6 million health-assisted subjects throughout the country. Patients with at least one prescription for triptorelin in the period 2010-2020 and with no evidence of metastasis were included and followed up until 2021. Overall survival (OS) and duration of treatment were analyzed using Kaplan-Meier curves, starting from the date of first prescription.</p><p><strong>Results: </strong>The cohort included a total of 3,411 patients (mean age: 76.8 ± 8.7 years), of whom 1,326 (38.9%) were treated with triptorelin only and 2,085 (61.1%) with triptorelin combined with an anti-androgen. Overall, 847 (24.8%) patients with prostate cancer died and 1,037 (30.4%) had a treatment switch during the follow-up period, and both the median OS and median duration of treatment were not reached in both groups. The mean annual total cost per patient was estimated as 5,574 €, with almost half of the costs related to medication expenses (2,737 €).</p><p><strong>Conclusions: </strong>We found a long survival and duration of triptorelin treatment in this population of Italian patients with prostate cancer. This study with a long follow-up period further highlights the usefulness of healthcare utilization databases to integrate results obtained from clinical studies with those from everyday clinical practice.</p>","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"207-213"},"PeriodicalIF":0.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11555663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142618557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Il burden economico e sociale della porpora trombotica trombocitopenica congenita (cTTP) in Italia. 意大利先天性血栓性血小板减少性紫癜 (cTTP) 的经济和社会负担。
IF 0.4
Global & Regional Health Technology Assessment Pub Date : 2024-10-28 eCollection Date: 2024-01-01 DOI: 10.33393/grhta.2024.3147
Filippo Rumi, Michele Basile, Eugenio Di Brino, Agostino Fortunato, Debora Antonini
{"title":"Il burden economico e sociale della porpora trombotica trombocitopenica congenita (cTTP) in Italia.","authors":"Filippo Rumi, Michele Basile, Eugenio Di Brino, Agostino Fortunato, Debora Antonini","doi":"10.33393/grhta.2024.3147","DOIUrl":"https://doi.org/10.33393/grhta.2024.3147","url":null,"abstract":"","PeriodicalId":12627,"journal":{"name":"Global & Regional Health Technology Assessment","volume":"11 ","pages":"200-206"},"PeriodicalIF":0.4,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11519643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142544979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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