Seung Eun Lee, Jihyun Ahn, Jaetaek Kim, Yeon-sahng Oh, Y. Chung
{"title":"A Case of Methimazole-induced Agranulocytosis and Kikuchi's Disease in a Patient with Graves' Disease","authors":"Seung Eun Lee, Jihyun Ahn, Jaetaek Kim, Yeon-sahng Oh, Y. Chung","doi":"10.3803/JKES.2008.23.6.420","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.6.420","url":null,"abstract":"Methimazole-induced agranulocytosis is a rare, but critical side effect that should be recognized as soon as possible since it may induce a life-threatening condition when it was overlooked. Histiocytic necrotizing lymphadenitis is also called Kikuchi’s lymphadenitis, and this is a rare form of lymphadenitis with a self-limited clinical course and this illness is accompanied by cervical lymph node enlargement, fever and malaise. We recently experienced a patient with methimazole-induced agranulocytosis and Graves' disease, and this was accompanied by Kikuchi's disease; the patient presented with sore throat and multiple enlarged cervical lymph nodes. To the best of our knowledge, there is no previous report on methimazole-induced agranulocytosis combined with Kikuchi's disease. Therefore, we report here on this very rare case along with a brief review of the relevant literature. (J Korean Endocr Soc 23:420~424, 2008) ꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏꠏ","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122425124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seok Ju Lee, Seung‐Hwan Lee, J. Chin, Youn-Mi Song, Sung Won Lee, Minhi Kim, Mi-Ja Kang, K. Lee, H. Kwon, K. Yoon, H. Son, B. Cha
{"title":"A Patient with Primary Amyloidosis Misrecognized as Thyrotoxicosis-induced Heart Failure","authors":"Seok Ju Lee, Seung‐Hwan Lee, J. Chin, Youn-Mi Song, Sung Won Lee, Minhi Kim, Mi-Ja Kang, K. Lee, H. Kwon, K. Yoon, H. Son, B. Cha","doi":"10.3803/JKES.2008.23.5.332","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.332","url":null,"abstract":"Amyloidosis is caused by deposition of insoluble amyloid protein in the extracellular space of organs and tissues. The causes of amyloidosis are classified as primary, secondary, and hereditary, and symptoms develop according to which organ is involved. Cardiac amyloidosis induces cardiomyopathy and is developed by deposition of amyloid proteins in cardiac tissue. We diagnosed a patient with rhabdomyolysis and thyrotoxicosis with underlying Graves' disease 5 years ago. The patient was readmitted recently complaining of general weakness and mild dyspnea, and was diagnosed as relapsed thyrotoxicosis. An echocardiogram was performed for the evaluation of dyspnea and the findings were compatible with infiltrative cardiomyopathy due to amyloidosis. A biopsy of the abdominal subcutaneous fat and rectal mucosa was performed, and diagnosis was amyloidosis with histologic findings. The cause of heart failure was therefore cardiac amyloidosis rather than thyrotoxicosis. This case indicates the importance of evaluating the cause of heart failure in patients with thyrotoxicosis. (J Korean Endocr Soc 23:332~336, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122289287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Ku, H. Park, S. Hong, D. Y. Shin, Jin Ha Lee, Moon Jae Chung, M. Cho, T. Noh, B. Lee, Eun Jig Lee
{"title":"A Case of Graves' Disease Presenting with Chorea","authors":"C. Ku, H. Park, S. Hong, D. Y. Shin, Jin Ha Lee, Moon Jae Chung, M. Cho, T. Noh, B. Lee, Eun Jig Lee","doi":"10.3803/JKES.2008.23.5.342","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.342","url":null,"abstract":"Hyperthyroidism is invariably accompanied by nervous system dysfunction. Specifically, irritability, emotional lability, and hyperkinesia are the signs and symptoms most frequently observed. In rare instances, chorea and/or choreoathetosis are associated with hyperthyroidism. Full evaluation for the etiology of chorea is necessary prior to initiating treatment. We recently encountered a 42-year-old female who initially presented with hyperthyroidism and showed subsequent development of progressive generalized chorea. The patient was diagnosed with chorea secondary to Graves’ disease after exclusion of other causes of chorea and improved after the initiation of pulse administration of intravenous methylprednisolone sodium succinate (Solu-medrol ® , 1000 mg for 5 days) and oral antithyroid medication. This treatment strategy resulted in the resolution of involuntary movements. The steroid administration was eventually tapered, and the patient has been maintained on antithyroid and steroid therapy with considerable success since the initiation of treatment. (J Korean Endocr Soc 23:342~346, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115243647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Jun, Guk Jin Lee, Ji-Hyun Kim, Jung Min Lee, S. Chang
{"title":"Primary Hypogonadism Associated with Ankylosing Spondylitis","authors":"B. Jun, Guk Jin Lee, Ji-Hyun Kim, Jung Min Lee, S. Chang","doi":"10.3803/JKES.2008.23.5.352","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.352","url":null,"abstract":"Male patients with hypogonadism have an increased risk of developing rheumatic diseases. Most causes of hypogonadism related with rheumatic disease are karyotype abnormality such as Klinefelter’s syndrome or Turner’s syndrome and gonadal dysgenesis. A 24-year-old year male was admitted for pain of both hip joints that had worsened over 2 months. He had hip joint involvement from ankylosing spondylitis and did not show secondary sex characteristics. His sex hormones and gonadotropins levels indicated hypergonadotropic hypogonadism. The karyotype was 46 XY, and there was no obvious cause of hypogonadism. Here we report on clinical features of this first Korean case of primary hypogonadism accompanying ankylosing spondylitis. (J Korean Endocr Soc 23:352~357, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115458751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Bhattarai, S. Park, Hua Yin, S. Park, J. Jeon, Kee-Wan Chang, So Young Lee, P. Ryu, S. Han
{"title":"Age-dependent Kisspeptin Effects on the GnRH Neurons in Male and Female Mice","authors":"J. Bhattarai, S. Park, Hua Yin, S. Park, J. Jeon, Kee-Wan Chang, So Young Lee, P. Ryu, S. Han","doi":"10.3803/JKES.2008.23.5.302","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.302","url":null,"abstract":"Background: The gonadotropin releasing hormone (GnRH) neurons play a pivotal role in the central regulation of fertility. Kisspeptin binds to the G-protein coupled receptor 54 (GPR54) and GPR54 has been shown to be essential for puberty and subsequent fertility in humans. The recent in vivo studies have proved that kisspeptin is an extremely potent activator of GnRH neurons. However, the precise mechanism of action of kisspeptin on the GnRH neurons and the age-dependent kisspeptin effects are not yet fully understood. In this study, we investigated the effects of kisspeptin on the GnRH neurons over the developmental stages in male and female mice. Methods: Young ( P35) GnRH-GFP transgenic mice expressing green fluorescent protein were used in this study. Acute coronal brain slices containing the preoptic area were prepared, and the identified GnRH neurons were recorded using the gramicidin perforated-patch clamp technique. Results: In young mice, GnRH neurons were excited by bath application of kisspeptin in 36% (13/36) in male, 17% (4/23) in female tested neurons. In adult mice, GnRH neurons were excited in the majority (30/40, 75%) in male, (21/31, 68%) in female neurons tested. However, there was no significant difference between the effects of kisspeptin in male and female mice. In addition, we tested kisspeptin effects in diestrus, proestrus and estrus animals. There were no significant differences of kisspeptin effects over the estrous cycle. Kisspeptin failed to induce excitatory effects on GnRH neurons (6/7, 86%) neurons) by pretreatment of U73122, a protein lipase C (PLC) inhibitor and kisspeptin-induced excitatory effects were decreased by U73122 application (n = 2). Conclusion: These results demonstrated that kisspeptin-induced membrane excitability was increased after puberty and this supports a previous suggestion that GPR54 is essential for puberty and subsequent fertility. (J Korean Endocr Soc 23:302~309, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116212252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyun Park, G. Kang, S. Kim, Jun Jae Kim, N. Baek, D. Kim, S. Cho, W. Lee, K. Ko, B. Rhee
{"title":"Brown Tumor of the Ulna and Radius: An Unusual Presentation of Primary Hyperparathyroidism","authors":"Hyun Park, G. Kang, S. Kim, Jun Jae Kim, N. Baek, D. Kim, S. Cho, W. Lee, K. Ko, B. Rhee","doi":"10.3803/JKES.2008.23.5.347","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.347","url":null,"abstract":"Brown tumors are erosive bony lesions caused by chronic excessive secretion of parathyroid hormone. Since the introduction of routine calcium measurement, the diagnosis of hyperparathyroidism has usually been made in asymptomatic patients and as a result, brown tumors are rarely observed as an initial manifestation of hyperparathyroidism. We report the case of a 70-year-old woman who presented with right wrist pain. A roentgenogram showed erosive bone tumors of the ulna and radius, which were mistaken for primary or metastatic bone tumors. Extensive workups were performed to determine the cause(s); however, these lesions were finally diagnosed as brown tumors associated with primary hyperparathyroidism due to a parathyroid adenoma. This case illustrates the diagnostic pitfall in patients who present with skeletal manifestations of hyperparathyroidism and the need for vigilance and a high level of suspicion by physicians. (J Korean Endocr Soc 23:347~351, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125861017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyejin Lee, Gun Woo Pyun, E. Byun, J. Oh, Jee-young Oh, Y. Hong, Y. Sung, H. Chung
{"title":"Calpain-10 Polymorphism in Korean Women with Polycystic Ovary Syndrome","authors":"Hyejin Lee, Gun Woo Pyun, E. Byun, J. Oh, Jee-young Oh, Y. Hong, Y. Sung, H. Chung","doi":"10.3803/JKES.2008.23.5.319","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.319","url":null,"abstract":"Background: Polycystic ovary syndrome (PCOS) is characterized by chronic anovulation, hyperandrogenism and insulin resistance, and PCOS is known to be associated with an increased risk of type 2 diabetes mellitus (DM). PCOS has also been proposed to share a common genetic background with type 2 DM. The calpain 10 (CAPN10) gene is known to be associated with type 2 DM in several different population. We examined the association of CAPN10 gene polymorphisms and their influence on the metabolic abnormalities in Korean women who suffer with PCOS. Methods: One hundred sixty four women with PCOS and 325 control women were studied. The CAPN10 gene polymorphisms were genotyped by amplifying the genomic DNA. Anthropometric measures, a 75g oral glucose tolerance test and measurement of insulin sensitivity by the euglycemic hyperinsulinemic clamp technique were performed. Results: The frequencies of CAPN10 UCSNP-43, UCSNP-19, UCSNP-63 and the haplotype combinations were not different between the women with PCOS and the control subjects. In the women with PCOS and who had the UCSNP-43 GA genotype, the post-load 90 minute plasma glucose level was significantly greater and the HDL cholesterol and insulin mediated glucose uptake were significantly lower compared to the women with PCOS and who had the GG genotype. Conclusion: The CAPN10 UCSNP-43 genotype might be responsible for insulin resistance, yet further study is required to confirm the role of this genetic polymorphism in the development of PCOS and the presentation of its disease features.","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132071726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sung Chul Park, Y. Park, S. Park, Jong-Yeon Kim, Yoon-Ki Park, Tae Hyung Lee, K. Won, Yong-Woon Kim
{"title":"The Effect of Leptin Level Fluctuations by a Repeated Fasting/Refeeding on the Leptin Sensitivity in OLETF Rats","authors":"Sung Chul Park, Y. Park, S. Park, Jong-Yeon Kim, Yoon-Ki Park, Tae Hyung Lee, K. Won, Yong-Woon Kim","doi":"10.3803/JKES.2008.23.5.310","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.310","url":null,"abstract":"Background: Leptin resistance is a common feature in obese subjects and animals, and this is commonly accompanied with hyperleptinemia. We speculated that one of the causes of leptin resistance is a persistently elevated leptin concentration and then we hypothesized that fluctuations of serum leptin would increase leptin sensitivity in the leptin-resistant state. Methods: We used a repeated fasting and refeeding (RFR) protocol to produce fluctuation in leptin levels in 7 month-old Otsuka Long-Evans Tokushima Fatty (OLETF) rats and Long-Evans Tokushima Otsuka (LETO) rats, We then measured the leptin sensitivity following an intracerebroventricular (i.c.v.) infusion of leptin. Results: The OLETF rats exhibited severe visceral fat deposition, hyperleptinemia and leptin resistance. However, in the OLETF-RFR rats, the anorexic effect following i.c.v. leptin infusion was restored. Moreover, the visceral fat mass and serum leptin levels decreased, while the serum adiponectin levels were elevated in the OLETF-RFR rats compared to the OLETF-Control rats. The leptin receptor content in the hypothalamus increased in the OLETF-RFR rats compared to the OLETF-Control rats, and the leptin receptor content in the OLETF-RFR rats decreased compared to that in the the LETO-Control rats. Conclusions: These results suggest that the intermittent suppression of the serum leptin level reversed the leptin resistance in OLEFT rats, and this may have occurred due to an increased number of leptin receptors in the hypothalamus. (J Korean Endocr Soc 23:310~318, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132236550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intensive Glucose Control and Cardiovascular Outcomes: Focused on Recent Clinical Trials","authors":"W. Lee, K. Ko, B. Rhee","doi":"10.3803/JKES.2008.23.5.289","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.289","url":null,"abstract":"심혈관 질환은 제2형 당뇨병 환자의 가장 중요한 사망원 인이며 많게는 제2형 당뇨병 환자의 75%가 결국 심혈관 질 환으로 사망한다[1]. 당뇨병으로 인한 합병증 발생은 고혈당 정도와 상관 관계가 있으며, 고혈당이 지속되면 당뇨병 환자 의 미세혈관 합병증 및 대혈관 합병증 발생이 증가하는 것 으로 알려져 있다[2]. 제1형 당뇨병 환자를 대상으로 한 Diabetes Control and Complications Trial (DCCT)[3]과 제2형 당뇨병 환자를 대 상으로 한 United Kingdom Prospective Diabetes Study (UKPDS)[4]를 통해 혈당을 철저히 조절하면 제1형과 제2 형 당뇨병 모두 미세혈관 합병증의 발생을 줄이고 진행 속 도를 늦출 수 있음을 확인하였다. 하지만 두 연구 모두 혈당 을 철저히 조절한 경우에도 대혈관 합병증 발생은 의미 있 게 줄이지 못하였다. “당뇨병 환자, 특히 제2형 당뇨병 환자를 대상으로 혈당 을 철저히 조절하면 심혈관 질환 발생을 줄일 수 있을까?” 라는 질문에 대한 답은 아직 불확실하다. 하지만 최근 이 같 은 질문에 일부 답 할 수 있는 연구 결과들[5~9]이 발표되어 많은 관심을 끌고 있다. 본 강좌에서는 최근 발표된 대규모 임상연구 결과를 자세 히 살펴보고, 이러한 연구들이 갖는 의미와 연구 결과를 당 뇨병 환자 진료에 어떻게 적용할 것인지에 대해 생각해보고 자 한다.","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116152600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Jeong, Tae Yong Kim, Eun Hee Kim, Eui Young Kim, Sang A Lee, J. Yim, K. Kim, W. Kim, Y. Shong
{"title":"A Case of Painful Graves' Disease","authors":"J. Jeong, Tae Yong Kim, Eun Hee Kim, Eui Young Kim, Sang A Lee, J. Yim, K. Kim, W. Kim, Y. Shong","doi":"10.3803/JKES.2008.23.5.337","DOIUrl":"https://doi.org/10.3803/JKES.2008.23.5.337","url":null,"abstract":"Graves’ disease rarely presents as pain and tenderness of goiter, with only a few cases reported in the literature. We describe a case of painful Graves’ disease presenting as 2 episodes of painful goiter. A-25-yr-old male was referred to our hospital because of pain in the anterior neck, palpitations, and muscle weakness. His heart rate was 122 beat/min and body temperature was normal. The thyroid gland was enlarged and tender. His thyroid function test showed thyrotoxicosis with high TSH binding inhibitory immunoglobulin (TBII) and thyroid peroxidase antibody (TPO Ab). A 99mTc-pertechnate thyroid scan showed diffuse increased uptake with no focal defects. He was started on propranolol, methimazole, Lugol’s solution, and prednisolone. He was discharged 7 days later with improved painful symptoms. The prednisolone was tapered out for 2 months. Eight months after the initial pain, he experienced one more episode of thyroid pain and hyperthyroidism, with an increase in TBII. He was treated with methimazole and prednisolone, and responded well. (J Korean Endocr Soc 23:337~341, 2008)","PeriodicalId":119859,"journal":{"name":"Journal of Korean Endocrine Society","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127631703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}