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   89635篇
  免费   6454篇
  国内免费   1789篇
耳鼻咽喉   967篇
儿科学   1983篇
妇产科学   1762篇
基础医学   10462篇
口腔科学   3284篇
临床医学   8588篇
内科学   19428篇
皮肤病学   1941篇
神经病学   6024篇
特种医学   1971篇
外国民族医学   6篇
外科学   11326篇
综合类   6355篇
现状与发展   2篇
一般理论   21篇
预防医学   7261篇
眼科学   2001篇
药学   6942篇
  52篇
中国医学   2411篇
肿瘤学   5091篇
  2024年   165篇
  2023年   860篇
  2022年   1966篇
  2021年   3854篇
  2020年   2514篇
  2019年   2768篇
  2018年   3088篇
  2017年   2509篇
  2016年   2349篇
  2015年   3139篇
  2014年   4325篇
  2013年   5089篇
  2012年   7797篇
  2011年   7986篇
  2010年   5099篇
  2009年   4334篇
  2008年   5952篇
  2007年   5940篇
  2006年   5439篇
  2005年   5041篇
  2004年   4106篇
  2003年   3814篇
  2002年   3226篇
  2001年   684篇
  2000年   578篇
  1999年   577篇
  1998年   544篇
  1997年   464篇
  1996年   408篇
  1995年   349篇
  1994年   291篇
  1993年   225篇
  1992年   223篇
  1991年   178篇
  1990年   145篇
  1989年   126篇
  1988年   136篇
  1987年   111篇
  1986年   114篇
  1985年   117篇
  1984年   114篇
  1983年   106篇
  1982年   98篇
  1981年   114篇
  1980年   97篇
  1979年   80篇
  1978年   60篇
  1977年   81篇
  1976年   61篇
  1975年   45篇
排序方式: 共有10000条查询结果,搜索用时 187 毫秒
1.
2.
3.
International Journal of Clinical Oncology - Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status...  相似文献   
4.
It is well recognized that the world population is ageing rapidly. Therefore, it is important to understand ageing processes at the cellular and molecular levels to predict the onset of age‐related diseases and prevent them. Recent research has focused on the identification of ageing biomarkers, including those associated with the properties of the Golgi apparatus. In this context, Golgi‐mediated glycosylation of proteins has been well characterized. Additionally, other studies show that the secretion of many compounds, including pro‐inflammatory cytokines and extracellular matrix–degrading enzymes, is modified during ageing, resulting in physical and functional skin degradation. Since the Golgi apparatus is a central organelle of the secretory pathway, we investigated its structural organization in senescent primary human dermal fibroblasts using confocal and electron microscopy. In addition, we monitored the expression of Golgi‐related genes in the same cells. Our data showed a marked alteration in the Golgi morphology during replicative senescence. In contrast to its small and compact structure in non‐senescent cells, the Golgi apparatus exhibited a large and expanded morphology in senescent fibroblasts. Our data also demonstrated that the expression of many genes related to Golgi structural integrity and function was significantly modified in senescent cells, suggesting a relationship between Golgi apparatus function and ageing.  相似文献   
5.
6.
7.
8.
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   
9.
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   
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