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   79442篇
  免费   6015篇
  国内免费   255篇
耳鼻咽喉   911篇
儿科学   2052篇
妇产科学   1083篇
基础医学   10762篇
口腔科学   843篇
临床医学   8419篇
内科学   17063篇
皮肤病学   885篇
神经病学   7745篇
特种医学   3062篇
外科学   12814篇
综合类   888篇
一般理论   91篇
预防医学   5960篇
眼科学   2012篇
药学   5369篇
中国医学   94篇
肿瘤学   5659篇
  2024年   55篇
  2023年   667篇
  2022年   1038篇
  2021年   2412篇
  2020年   1358篇
  2019年   2207篇
  2018年   2528篇
  2017年   1802篇
  2016年   1896篇
  2015年   2216篇
  2014年   3209篇
  2013年   4061篇
  2012年   6510篇
  2011年   6752篇
  2010年   3693篇
  2009年   3239篇
  2008年   5391篇
  2007年   5592篇
  2006年   5179篇
  2005年   5138篇
  2004年   4638篇
  2003年   4255篇
  2002年   3856篇
  2001年   602篇
  2000年   400篇
  1999年   572篇
  1998年   788篇
  1997年   589篇
  1996年   479篇
  1995年   426篇
  1994年   399篇
  1993年   396篇
  1992年   254篇
  1991年   198篇
  1990年   184篇
  1989年   167篇
  1988年   158篇
  1987年   136篇
  1986年   132篇
  1985年   147篇
  1984年   183篇
  1983年   151篇
  1982年   236篇
  1981年   233篇
  1980年   164篇
  1979年   96篇
  1978年   114篇
  1977年   100篇
  1976年   70篇
  1975年   59篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.

Background  

Few studies have explored exercise and motivational patterns of cardiac rehabilitation patients in the long term.  相似文献   
993.
994.
Poly(lactic-co-glycolic acid) (PLGA) is a well-studied biodegradable polymer used in drug delivery and other medical applications such as in tissue regeneration. It is often necessary to impart porosity within the scaffold (microparticles) in order to promote the growth of tissue during the regeneration process. Sodium chloride and ammonium bicarbonate have been extensively used as porogens in the generation of porous microstructure. In this study, we compared the effect of volumes (250?μl, 500?μl and 750?μl) of two porogens, sodium chloride (1.71 M) and ammonium bicarbonate (1.71 M), on the porosity of PLGA microparticles.  相似文献   
995.
996.
Aim. To ascertain the socio‐cultural meaning and consequences of tuberculosis among people of Somali origin living in the UK. Background. In countries where treatment has not been readily available, tuberculosis has become highly stigmatized. Research in Somalia has documented the stigma and social isolation associated with tuberculosis which acts as a powerful deterrent to sufferers acknowledging their illness. The Somali community in the UK is diverse and dynamic: little is known about how tuberculosis is understood, or how stigma is articulated and experienced post‐migration. Design. A focused ethnography was undertaken. Method. A total of 48 individual interviews were undertaken in 2008–2009 with community leaders, Somali community members and tuberculosis patients to explore the social meaning of tuberculosis and perceived consequences of the disease. Eight focus groups were undertaken involving 56 participants. Vignettes concerning tuberculosis were used to prompt discussion of community norms and socio‐cultural constructions of tuberculosis. Data were analysed using the ‘Framework’ approach. Findings. Most participants were familiar with tuberculosis, its characteristics and treatment. However, many participants held misconceptions about how the disease spread and its prognosis. Tuberculosis was perceived as a stigmatizing disease. Somalis with tuberculosis were considered likely to experience felt and enacted stigma with fear of discrimination in the form of social isolation influencing the extent to which people with tuberculosis disclosed their condition. Conclusion. Nurses should understand the socio‐cultural meaning and consequences of tuberculosis for Somalis to educate the community through public health initiatives and support patients and their families.  相似文献   
997.
ABSTRACT: BACKGROUND: The purpose of this correspondence article is to report opinion amongst experts in the delirium field as to why, despite on-going training for all health professionals, delirium continues to be under recognised. Consensus was obtained by means of two conference workshops and an online survey of members of the European Delirium Association.Major barriers to recognition at an individual level include ignorance about the benefit of treating delirium. At an organisational level, reflecting socio-cultural attitudes, barriers include a low strategic and financial priority and the fact that delirium is an orphan condition falling between specialties.  相似文献   
998.
Several lines of evidence from basic research indicate that B cells may contribute to the pathogenesis of systemic sclerosis. Clinical studies as well have provided preliminary data pointing to the direction that B-cell depletion with rituximab might be a therapeutic option for patients with this debilitating disease.  相似文献   
999.
1000.
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