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   2397594篇
  免费   177866篇
  国内免费   3527篇
耳鼻咽喉   32862篇
儿科学   77415篇
妇产科学   63760篇
基础医学   353873篇
口腔科学   64806篇
临床医学   216522篇
内科学   467531篇
皮肤病学   52544篇
神经病学   190196篇
特种医学   89755篇
外国民族医学   493篇
外科学   362288篇
综合类   48183篇
现状与发展   12篇
一般理论   931篇
预防医学   187250篇
眼科学   55389篇
药学   178309篇
  11篇
中国医学   4663篇
肿瘤学   132194篇
  2021年   20162篇
  2019年   20643篇
  2018年   28335篇
  2017年   21283篇
  2016年   23670篇
  2015年   26659篇
  2014年   37625篇
  2013年   56222篇
  2012年   78005篇
  2011年   82891篇
  2010年   49011篇
  2009年   46287篇
  2008年   77700篇
  2007年   82811篇
  2006年   83604篇
  2005年   80952篇
  2004年   77447篇
  2003年   74485篇
  2002年   71990篇
  2001年   109099篇
  2000年   111769篇
  1999年   93915篇
  1998年   27551篇
  1997年   24168篇
  1996年   24526篇
  1995年   23117篇
  1994年   21297篇
  1993年   20049篇
  1992年   72272篇
  1991年   70337篇
  1990年   68612篇
  1989年   65869篇
  1988年   60506篇
  1987年   59328篇
  1986年   55423篇
  1985年   53268篇
  1984年   39662篇
  1983年   33671篇
  1982年   20275篇
  1979年   36031篇
  1978年   25869篇
  1977年   21443篇
  1976年   20499篇
  1975年   21993篇
  1974年   26294篇
  1973年   24950篇
  1972年   23324篇
  1971年   22124篇
  1970年   20315篇
  1969年   19381篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
91.
92.
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   
93.
Context: Persons with spinal cord injury (SCI) experience significant challenges when they access primary care and community services.

Design: A provincial summit was held to direct research, education, and innovation for primary and community care for SCI.

Setting: Toronto, Ontario, Canada.

Participants: Key stakeholders (N?=?95) including persons with SCI and caregivers, clinicians from primary care, rehabilitation, and specialized care, researchers, advocacy groups, and policy makers.

Methods: A one-day facilitated meeting that included guest speakers, panel discussions and small group discussions was held to generate potential solutions to current issues related to SCI care and to foster collaborative relationships to advance care for SCI. Perspectives on SCI management were shared by primary care, neurosurgery, rehabilitation, and members of the SCI community

Outcome Measures: Discussions were focused on five domains: knowledge translation and dissemination, application of best practices, communication, research, and patient service accessibility.

Results: Summit participants identified issues and prioritized solutions to improve primary and community care including the creation of a network of key stakeholders to enable knowledge creation and dissemination; an online repository of SCI resources, integrated health records, and a clinical network for SCI care; development and implementation of strategies to improve care transitions across sectors; implementation of effective care models and improved access to services; and utilization of empowerment frameworks to support self-management.

Conclusions: This summit identified priorities for further collaborative efforts to advance SCI primary and community care and will inform the development of a provincial SCI strategy aimed at improving the system of care for SCI.  相似文献   
94.
BackgroundSecond-hand smoking or environmental tobacco smoke is a critical health risk. Children are the most vulnerable to second-hand smoking because of their small bronchial ducts, less developed immunity, and low-physical activity.ObjectivesThe purpose of this study was to ascertain the effects of second-hand smoking on lung functions in athlete and non-athlete school-aged children.MethodsThis observational study included forty-six school-aged children, their age was 8–15 years, assigned to three groups; 2 study groups and 1 control group (n=15). The study groups comprised of 16 football players, and of 15 cyclists. Lung functions were evaluated recording forced vital capacity, forced expiratory volume in 1 sec and peak expiratory flow using digital spirometer.ResultsAll measures were recorded in definite values and the children were also classified into second-hand smoking (SH), or non-exposed to tobacco smoking (NE). The findings presented a significant increase (p<0.05) of the study groups in forced vital capacity, forced expiratory volume in 1 sec and peak expiratory flow solely for the non-exposed children. However, there were non-significant differences between the cyclists and football players or between the passive smoking children and non-exposed children in any of the two study groups (p>0.05).ConclusionThe outcomes of this study suggest beneficial influences of the sports activity on the lung functions, without different influences of the cyclists and football players on the lung functions.  相似文献   
95.
96.
97.
98.
99.
100.
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