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   251994篇
  免费   17856篇
  国内免费   1130篇
耳鼻咽喉   2787篇
儿科学   6495篇
妇产科学   4595篇
基础医学   32941篇
口腔科学   4557篇
临床医学   25323篇
内科学   53598篇
皮肤病学   3383篇
神经病学   24283篇
特种医学   8398篇
外国民族医学   11篇
外科学   38454篇
综合类   3456篇
一般理论   318篇
预防医学   21401篇
眼科学   6559篇
药学   16966篇
  6篇
中国医学   361篇
肿瘤学   17088篇
  2023年   1339篇
  2022年   2411篇
  2021年   5438篇
  2020年   3261篇
  2019年   5300篇
  2018年   5950篇
  2017年   4470篇
  2016年   4958篇
  2015年   5828篇
  2014年   8603篇
  2013年   11794篇
  2012年   18012篇
  2011年   18899篇
  2010年   10575篇
  2009年   9427篇
  2008年   16595篇
  2007年   17448篇
  2006年   17299篇
  2005年   17275篇
  2004年   16188篇
  2003年   15039篇
  2002年   14055篇
  2001年   2102篇
  2000年   1599篇
  1999年   2318篇
  1998年   3065篇
  1997年   2560篇
  1996年   2183篇
  1995年   2095篇
  1994年   1744篇
  1993年   1571篇
  1992年   1256篇
  1991年   1150篇
  1990年   999篇
  1989年   973篇
  1988年   966篇
  1987年   945篇
  1986年   950篇
  1985年   963篇
  1984年   1217篇
  1983年   1123篇
  1982年   1364篇
  1981年   1312篇
  1980年   1145篇
  1979年   703篇
  1978年   747篇
  1977年   635篇
  1976年   584篇
  1975年   469篇
  1974年   472篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
Originally described by Rosen in 1983, syringomatous nipple adenoma (SAN) is a tumor of disputed histogenesis, which can be problematic both diagnostically and therapeutically. 1 It is a benign primary tumor of breast epithelium with histology similar to that of the syringoma. In the current case, we describe a 40-year-old female with this lesion occurring within a supernumerary breast. This case represents, to our knowledge, the first such reported case, and represents a significant finding as its presence could lend some confusion as to whether or not this represents a benign primary process of breast or a potentially infiltrative tumor of the skin.  相似文献   
53.
54.
55.
Contrary to popular beliefs, a recent empirical study using eye tracking has shown that a non-clinical sample of socially anxious adults did not avoid the eyes during face scanning. Using eye-tracking measures, we sought to extend these findings by examining the relation between stable shyness and face scanning patterns in a non-clinical sample of 11-year-old children. We found that shyness was associated with longer dwell time to the eye region than the mouth, suggesting that some shy children were not avoiding the eyes. Shyness was also correlated with fewer first fixations to the nose, which is thought to reflect the typical global strategy of face processing. Present results replicate and extend recent work on social anxiety and face scanning in adults to shyness in children. These preliminary findings also provide support for the notion that some shy children may be hypersensitive to detecting social cues and intentions in others conveyed by the eyes. Theoretical and practical implications for understanding the social cognitive correlates and treatment of shyness are discussed.  相似文献   
56.
57.
58.
59.
BACKGROUND: Cardiac rehabilitation (CR) has an evidence base but traditional models may not readily apply to people living in rural and remote regions. AIM:: To outline published comprehensive and non-hospital based CR models used for people discharged from hospital after a cardiac event that have potential relevance to those living in rural and remote areas in Australia. METHODS: The PubMed database was searched using Medical subject headings (MeSH) terms and the key word 'cardiac rehabilitation' limited to clinical trials. Articles were retrieved if they included at least two components of CR and were not based in an outpatient setting. RESULTS: No CR models specifically developed for rural and remote areas were identified. However, 14 studies were found that outlined 11 non-conventional comprehensive CR models. All provided CR in a home-based setting. Health professionals provided support via telephone contact or home visits, and via resources such as the Heart Manual. Reported outcomes from these CR programs varied: ranging from an increase in knowledge of risk factors, to improvements in physical activity, decreased risk factor profile, improved psychological and social functioning and reductions in health service costs and mortality. CONCLUSION: Home-based, CR models have the most substantive evidence base and, therefore the greatest potential to be developed and made accessible to eligible people living in rural and remote areas.  相似文献   
60.
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