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   12925篇
  免费   916篇
  国内免费   49篇
耳鼻咽喉   157篇
儿科学   361篇
妇产科学   176篇
基础医学   1589篇
口腔科学   282篇
临床医学   1503篇
内科学   2854篇
皮肤病学   223篇
神经病学   1231篇
特种医学   626篇
外科学   2045篇
综合类   121篇
一般理论   5篇
预防医学   907篇
眼科学   333篇
药学   742篇
中国医学   14篇
肿瘤学   721篇
  2023年   82篇
  2022年   62篇
  2021年   270篇
  2020年   201篇
  2019年   318篇
  2018年   388篇
  2017年   251篇
  2016年   315篇
  2015年   397篇
  2014年   474篇
  2013年   586篇
  2012年   998篇
  2011年   970篇
  2010年   571篇
  2009年   471篇
  2008年   856篇
  2007年   837篇
  2006年   800篇
  2005年   737篇
  2004年   590篇
  2003年   574篇
  2002年   467篇
  2001年   180篇
  2000年   162篇
  1999年   196篇
  1998年   97篇
  1997年   96篇
  1996年   66篇
  1995年   66篇
  1994年   66篇
  1993年   45篇
  1992年   93篇
  1991年   105篇
  1990年   93篇
  1989年   103篇
  1988年   89篇
  1987年   88篇
  1986年   79篇
  1985年   100篇
  1984年   86篇
  1983年   54篇
  1982年   59篇
  1981年   45篇
  1980年   58篇
  1979年   74篇
  1978年   52篇
  1976年   40篇
  1975年   39篇
  1972年   38篇
  1971年   38篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Breast Cancer Research and Treatment - Radiotherapy (RT) was identified as a risk factor for long-term cardiac effects in breast cancer patients treated until the 1990s. However, modern techniques...  相似文献   
2.
Pituitary - Pituitary adenomas affect patients’ quality-of-life (QoL) across several domains, with long-term implications even following gross-total resection or disease remission. While...  相似文献   
3.
4.
Mast cells are (in)famous for their role in allergic diseases, but the physiological and pathophysiological roles of this ingenious cell are still not fully understood. Mast cells are important for homeostasis and surveillance of the human system, recognizing both endogenous and exogenous agents, which induce release of a variety of mediators acting on both immune and non-immune cells, including nerve cells, fibroblasts, endothelial cells, smooth muscle cells, and epithelial cells. During recent years, clinical and experimental studies on human mast cells, as well as experiments using animal models, have resulted in many discoveries that help decipher the function of mast cells in health and disease. In this review, we focus particularly on new insights into mast cell biology, with a focus on mast cell development, recruitment, heterogeneity, and reactivity. We also highlight the development in our understanding of mast cell-driven diseases and discuss the development of novel strategies to treat such conditions.  相似文献   
5.
Die Anaesthesiologie - Bei etwa 43?% aller Überlebenden der Intensivmedizin wird ein erworbenes Syndrom an Muskelschwäche beobachtet, welches Überleben und Lebensqualität...  相似文献   
6.
7.
8.
BackgroundPercutaneous coronary intervention (PCI) of total chronic total occlusion (CTO) still remains a major challenge in interventional cardiology. There is only insignificant knowledge reported in the literature about the influence of body mass index (BMI) on acute outcome, including success rates and complications in CTO-PCI.MethodsBetween 2012 and 2017, we included 508 patients. They underwent PCI for at least one CTO. Antegrade and retrograde CTO techniques were applied. The retrograde approach was used only after failed antegrade intervention. BMI was calculated according to the definitions of the World Health Organization. It was subdivided as normal weight (18.5–24.9 kg/m2), overweight (25–29.9 kg/m2), obese (30–34.9 kg/m2), and very obese (≥35 kg/m2). The Shapiro–Wilk test was used to test for normality of distribution. Continuous variables were tested for differences with Kruskal–Wallis or Mann–Whitney U test as appropriate. Categorical variables were tested with Fisher exact test.ResultsOut of the 508 patients, 77 (15.2%) had normal weight, 286 (56.3%) were overweight, 106 (20.9%) obese, and 39 (7.7%) very obese. Radiation dose and examination time increased with elevated BMI categories (p < 0.001, p = 0.026). Success rates were similar in all BMI categories (p = 0.645). In-hospital procedural complications were rare and showed no statistically significant difference (p = 0.185).ConclusionsOur retrospective study suggests that there exists no significant association between overweight and acute outcome in patients undergoing CTO-PCI. It is safe and feasible to perform.  相似文献   
9.
10.
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