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   2657499篇
  免费   209008篇
  国内免费   7692篇
耳鼻咽喉   35135篇
儿科学   87578篇
妇产科学   73448篇
基础医学   369883篇
口腔科学   75013篇
临床医学   236071篇
内科学   528410篇
皮肤病学   58897篇
神经病学   219077篇
特种医学   107896篇
外国民族医学   721篇
外科学   409329篇
综合类   64117篇
现状与发展   5篇
一般理论   912篇
预防医学   212359篇
眼科学   58284篇
药学   191996篇
  8篇
中国医学   4594篇
肿瘤学   140466篇
  2018年   33924篇
  2017年   26914篇
  2016年   31329篇
  2015年   26328篇
  2014年   36432篇
  2013年   55000篇
  2012年   72687篇
  2011年   82785篇
  2010年   52102篇
  2009年   48595篇
  2008年   79020篇
  2007年   85210篇
  2006年   76853篇
  2005年   76055篇
  2004年   74236篇
  2003年   72671篇
  2002年   69230篇
  2001年   120431篇
  2000年   124295篇
  1999年   104510篇
  1998年   30563篇
  1997年   27684篇
  1996年   28224篇
  1995年   27954篇
  1994年   26295篇
  1993年   24697篇
  1992年   87067篇
  1991年   84869篇
  1990年   82183篇
  1989年   79080篇
  1988年   73554篇
  1987年   72449篇
  1986年   68613篇
  1985年   66334篇
  1984年   50268篇
  1983年   42854篇
  1982年   26134篇
  1981年   23430篇
  1980年   22142篇
  1979年   47001篇
  1978年   33366篇
  1977年   28205篇
  1976年   26287篇
  1975年   27655篇
  1974年   33326篇
  1973年   32021篇
  1972年   29484篇
  1971年   27571篇
  1970年   25327篇
  1969年   23801篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
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   
22.
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   
23.
24.
25.
26.
27.
28.
29.
30.
Past research suggests that as many as 50% of onward human immunodeficiency virus (HIV) transmissions occur during acute and recent HIV infection. It is clearly important to develop interventions which focus on this highly infectious stage of HIV infection to prevent further transmission in the risk networks of acutely and recently infected individuals. Project Protect tries to find recently and acutely infected individuals and prevents HIV transmission in their risk networks. Participants are recruited by community health outreach workers at community-based HIV testing sites and drug users' community venues, by coupon referrals and through referrals from AIDS clinics. When a network with acute/recent infection is identified, network members are interviewed about their risky behaviors, network information is collected, and blood is drawn for HIV testing. Participants are also educated and given prevention materials (condoms, syringes, educational materials); HIV-infected participants are referred to AIDS clinics and are assisted with access to care. Community alerts about elevated risk of HIV transmission are distributed within the risk networks of recently infected. Overall, 342 people were recruited to the project and screened for acute/recent HIV infection. Only six index cases of recent infection (2.3% of all people screened) were found through primary screening at voluntary counseling and testing (VCT) sites, but six cases of recent infection were found through contact tracing of these recently infected participants (7% of network members who came to the interview). Combining screening at VCT sites and contact tracing the number of recently infected people we located as compared to VCT screening alone. No adverse events were encountered. These first results provide evidence for the theory behind the intervention, i.e., in the risk networks of recently infected people there are other people with recent HIV infection and they can be successfully located without increasing stigma for project participants.  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