首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   40105篇
  免费   2985篇
  国内免费   160篇
耳鼻咽喉   366篇
儿科学   1148篇
妇产科学   765篇
基础医学   5006篇
口腔科学   767篇
临床医学   3926篇
内科学   8931篇
皮肤病学   598篇
神经病学   4157篇
特种医学   1194篇
外国民族医学   1篇
外科学   5582篇
综合类   627篇
一般理论   31篇
预防医学   3479篇
眼科学   793篇
药学   2908篇
  1篇
中国医学   63篇
肿瘤学   2907篇
  2023年   230篇
  2022年   296篇
  2021年   764篇
  2020年   515篇
  2019年   754篇
  2018年   860篇
  2017年   659篇
  2016年   724篇
  2015年   868篇
  2014年   1214篇
  2013年   1738篇
  2012年   2573篇
  2011年   2869篇
  2010年   1573篇
  2009年   1464篇
  2008年   2408篇
  2007年   2698篇
  2006年   2608篇
  2005年   2688篇
  2004年   2436篇
  2003年   2289篇
  2002年   2159篇
  2001年   469篇
  2000年   389篇
  1999年   496篇
  1998年   491篇
  1997年   373篇
  1996年   361篇
  1995年   297篇
  1994年   257篇
  1993年   290篇
  1992年   304篇
  1991年   305篇
  1990年   272篇
  1989年   234篇
  1988年   247篇
  1987年   218篇
  1986年   176篇
  1985年   241篇
  1984年   286篇
  1983年   237篇
  1982年   261篇
  1981年   269篇
  1980年   262篇
  1979年   165篇
  1978年   176篇
  1977年   151篇
  1976年   132篇
  1974年   125篇
  1973年   107篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
We report a case of disseminated Trichosporon asahii in a patient on systemic antifungal therapy who presented with multiple cutaneous nodules suggestive of fungal infection. Histologic features resembled neutrophilic eccrine hidradenitis but staining with periodic acid‐Schiff and Gomori methenamine silver confirmed the clinical diagnosis. This case highlights the importance of maintaining suspicion for trichosporonosis and contextualizing histologic findings within the underlying clinical picture.  相似文献   
13.
14.
15.
16.
Capillary malformation–arteriovenous malformation syndrome (CM‐AVM) is an autosomal dominant disorder caused by RASA1 mutations. The prevalence and phenotypic spectrum are unknown. Evaluation of patients with multiple CMs is challenging because associated AVMs can be life threatening. The objective of this study was to describe the clinical characteristics of children presenting with features of CM‐AVM to an academic pediatric dermatology practice. After institutional review board approval was received, a retrospective chart review was performed of patients presenting between 2009 and 2012 with features of CM‐AVM. We report nine cases. Presenting symptoms ranged from extensive vascular stains and cardiac failure to CMs noted incidentally during routine skin examination. All demonstrated multiple CMs, two had Parkes Weber syndrome, and two had multiple infantile hemangiomas. Seven patients had family histories of multiple CMs; three had family histories of large, atypical CMs. Six had personal or family histories of AVMs. Genetic evaluation was recommended for all and was pursued by six families; four RASA1 mutations were identified, including one de novo. Consultations with neurology, cardiology, and orthopedics were recommended. Most patients (89%) have not required treatment to date. CM‐AVM is an underrecognized condition with a wide clinical spectrum that often presents in childhood. Further evaluation may be indicated in patients with multiple CMs. This study is limited by its small and retrospective nature.  相似文献   
17.
Hyperhidrosis can seriously impair patients’ quality of life. Medical history, including heredity and hyperhidrosis during youth, as well as current age and time elapsed since menopause, is important to consider when distinguishing between postmenopausal hyperhidrosis and vasomotor symptoms to enable adequate treatment. This report concerns a subgroup of eight postmenopausal patients participating in a randomized controlled trial regarding botulinum toxin (Btx) type B treatment in craniofacial hyperhidrosis. Even though the sample size is small and the enrolment is not yet completed, the promising data collected hitherto are interesting to present in advance because this subtype of craniofacial hyperhidrosis is often underrecognized and challenging to treat. Patients were randomized to receive Btx type B or placebo. Measurements were performed before treatment and 3 ± 1 weeks after. The Dermatology Life Quality Index (DLQI) score was improved for all patients after Btx type B treatment (n = 3) with a median decrease of 9 points (90% median improvement). The placebo group (n = 5) had a median increase of 2 points (–18% median decline). When the same group (n = 5) received Btx type B (open) the DLQI score decreased with a median of 7 points compared with baseline (91% median improvement). Treatment‐related adverse events were temporary and did not prevent improvement of life quality. Furthermore, background data evaluation uncovered interesting findings regarding vasomotor symptoms in relation to postmenopausal hyperhidrosis. In conclusion, the results indicated that Btx type B seems to be a safe and effective treatment in postmenopausal craniofacial hyperhidrosis. Further research is encouraged.  相似文献   
18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号