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   2696673篇
  免费   208432篇
  国内免费   8506篇
耳鼻咽喉   35016篇
儿科学   88529篇
妇产科学   73273篇
基础医学   376858篇
口腔科学   76376篇
临床医学   244646篇
内科学   536790篇
皮肤病学   62649篇
神经病学   214945篇
特种医学   105360篇
外国民族医学   507篇
外科学   414009篇
综合类   64033篇
现状与发展   6篇
一般理论   924篇
预防医学   209066篇
眼科学   61624篇
药学   194223篇
  12篇
中国医学   5920篇
肿瘤学   148845篇
  2018年   29504篇
  2017年   22628篇
  2016年   25763篇
  2015年   29189篇
  2014年   40701篇
  2013年   60478篇
  2012年   79383篇
  2011年   84471篇
  2010年   51191篇
  2009年   48565篇
  2008年   78428篇
  2007年   83535篇
  2006年   84835篇
  2005年   81517篇
  2004年   78399篇
  2003年   75220篇
  2002年   72080篇
  2001年   134806篇
  2000年   138395篇
  1999年   114828篇
  1998年   32318篇
  1997年   28487篇
  1996年   29234篇
  1995年   28739篇
  1994年   26591篇
  1993年   24757篇
  1992年   90825篇
  1991年   88077篇
  1990年   84934篇
  1989年   81406篇
  1988年   74790篇
  1987年   73425篇
  1986年   69185篇
  1985年   66141篇
  1984年   49610篇
  1983年   41903篇
  1982年   24855篇
  1981年   22305篇
  1980年   20639篇
  1979年   44154篇
  1978年   31267篇
  1977年   26645篇
  1976年   24658篇
  1975年   25858篇
  1974年   30770篇
  1973年   29645篇
  1972年   27537篇
  1971年   25351篇
  1970年   23394篇
  1969年   21948篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
73.
The current situation in which the humanities are disparaged affects all university disciplines, including nursing, in whose historical evolution the humanities have always been present in one form or another. Looking beyond this disrepute, this study proposes that nursing renew its attention to classical philosophy. Specifically, it invites a close reading of Xenophon's Anabasis and Plato's Meno, to get three related goals: to show how the use of ancient texts are very valuable tools for the philosophical initiation of nursing students and can help them reflect on their choice of nursing as a practical activity; to reflect on the problem of virtue and the nature of the good life; and to show how the interaction with ancient texts allows students to reflect on questions and issues of life, theirs and others, that are not open to investigation through a purely scientific method. Consequently, both Anabasis and Meno readings strengthen the intellectual relationship between philosophy and nursing, enabling the latter to delve deeper into the key questions of its own thought as a discipline.  相似文献   
74.
Obesity Surgery - Laparoscopic sleeve gastrectomy (LSG) is increasingly playing a key role in obesity management. Such operations, however, carry complications sometimes including leaks. The...  相似文献   
75.
Lasers in Medical Science - Studies reported the harmful effects of 2,4-D on body tissues, provoking changes in the anatomy and physiology of the kidneys, liver, and testicles. Thus, the objective...  相似文献   
76.
77.
78.
Behçet disease is a complex, multisystem disease characterized by recurrent oral and genital ulcerations. It rarely occurs in infants or children. Neonatal Behçet disease has been reported in infants whose ulcers resolve at or before 9 weeks of age. Few cases of neonatal Behçet disease persisting into childhood have previously been reported. We report the case of a 1‐month‐old infant who presented with severe recurrent genital ulcerations and at 6 months developed recurrent oral ulcerations. Her orogenital ulcerations continue to recur. Human leukocyte antigen testing revealed HLA‐B51 and B44 positivity. This is a case of pediatric Behçet disease in the neonatal period. Behçet disease should be considered in the differential diagnosis of recurrent genital and oral ulcerations in infants and children.  相似文献   
79.
Caring for patients with end-stage kidney disease (ESKD) in the United States is challenging, due in part to the complex epidemiology of the disease's progression as well as the ways in which care is delivered. As CKD progresses toward ESKD, the number of comorbidities increases and care involves multiple healthcare providers from multiple subspecialties. This occurs in the context of a fragmented US healthcare delivery system that is traditionally siloed by provider specialty, organization, as well as systems of payment and administration. This article describes the role of care fragmentation in the delivery of optimal ESKD care and identifies research gaps in the evidence across the continuum of care. We then consider the impact of care fragmentation on ESKD care from the patient and health system perspectives and explore opportunities for system-level interventions aimed at improving care for patients with ESKD.  相似文献   
80.
Nevo  N.  Goldstein  A. L.  Staierman  M.  Eran  N.  Carmeli  I.  Rayman  S.  mnouskin  Y. 《Hernia》2022,26(6):1491-1499
Hernia - The minimally invasive surgical repair of combined inguinal and ventral hernias often requires shifting from one approach or plane to another. The traditional enhanced-view totally...  相似文献   
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