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   70730篇
  免费   4878篇
  国内免费   895篇
耳鼻咽喉   349篇
儿科学   985篇
妇产科学   1141篇
基础医学   2787篇
口腔科学   763篇
临床医学   11933篇
内科学   6359篇
皮肤病学   687篇
神经病学   1861篇
特种医学   964篇
外国民族医学   1篇
外科学   5589篇
综合类   10215篇
现状与发展   3篇
一般理论   3篇
预防医学   14581篇
眼科学   372篇
药学   13592篇
  130篇
中国医学   1227篇
肿瘤学   2961篇
  2024年   87篇
  2023年   1147篇
  2022年   2111篇
  2021年   3091篇
  2020年   3372篇
  2019年   2354篇
  2018年   2272篇
  2017年   2293篇
  2016年   2409篇
  2015年   2556篇
  2014年   5955篇
  2013年   6036篇
  2012年   5245篇
  2011年   5515篇
  2010年   4322篇
  2009年   3802篇
  2008年   3825篇
  2007年   3405篇
  2006年   3022篇
  2005年   2368篇
  2004年   1948篇
  2003年   1529篇
  2002年   1106篇
  2001年   910篇
  2000年   787篇
  1999年   713篇
  1998年   545篇
  1997年   461篇
  1996年   370篇
  1995年   319篇
  1994年   309篇
  1993年   252篇
  1992年   210篇
  1991年   170篇
  1990年   137篇
  1989年   118篇
  1988年   132篇
  1987年   121篇
  1986年   120篇
  1985年   149篇
  1984年   147篇
  1983年   90篇
  1982年   86篇
  1981年   69篇
  1980年   77篇
  1979年   52篇
  1978年   63篇
  1977年   55篇
  1976年   61篇
  1975年   65篇
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
71.
通过探讨DRG支付方式改革下医院财务管理的应对策略,可以有效地降低医疗支付方式改革对医院财务管理的负面影响,促使医院财务管理在"危"与"机"的转换中抢抓机遇,促进医院财务管理提质增效。  相似文献   
72.
Breast cancer is one of the leading causes of cancer-related deaths in women worldwide. It is a cancer that originates from the mammary ducts and involves mutations in multiple genes. Recently, the treatment of breast cancer has become increasingly challenging owing to the increase in tumor heterogeneity and aggressiveness, which gives rise to therapeutic resistance. Epidemiological, population-based, and hospital-based case-control studies have demonstrated an association between high intake of certain Allium vegetables and a reduced risk in the development of breast cancer. Diallyl disulfide (DADS) and diallyl trisulfide (DATS) are the main allyl sulfur compounds present in garlic, and are known to exhibit anticancer activity as they interfere with breast cancer cell proliferation, tumor metastasis, and angiogenesis. The present review highlights multidrug resistance mechanisms and their signaling pathways in breast cancer. This review discusses the potential anticancer activities of DADS and DATS, with emphasis on drug resistance in triple-negative breast cancer (TNBC). Understanding the anticancer activities of DADS and DATS provides insights into their potential in targeting drug resistance mechanisms of TNBC, especially in clinical studies.  相似文献   
73.
74.
Osteoarthritis (OA) is a highly prevalent joint disease that is associated with pain, loss of function, and high direct and indirect economic costs. The current therapeutic options are inadequate, providing only a moderate symptom relief without the possibility of disease modification. While treatment options and personalized medicines are increasing for many complex diseases, OA drug development has been impeded by the advanced state of disease at the time of diagnosis and intervention, heterogeneity in both symptoms and rates of progression, and a lack of validated biomarkers and relevant outcome measures. This review article summarizes the OA landscape, including therapies in development as potential OA treatments, potential biomarkers undergoing evaluation by the US Food and Drug Administration, and a summary of current OA treatment guidelines, with a particular focus on the knee OA.  相似文献   
75.
As a powerful tool to advance drug discovery, molecular imaging may provide new insights into the process of drug effect and therapy at cellular and molecular levels. When compared with other detection methods, fluorescence-based strategies are highly attractive and can be used to illuminate pathways of drugs’ transport, with multi-color capacity, high specificity and good sensitivity. The conjugates of fluorescent molecules and therapeutic agents create exciting avenues for real-time monitoring of drug delivery and distribution, both in vitro and in vivo. In this short review, we discuss recent developments of small molecule-based fluorophore-drug conjugates, including non-cleavable and cleavable ones, that are capable of visualizing drug delivery.  相似文献   
76.
77.
Continuous management improvement should be an aspiration for all public sector organizations. External comparison or benchmarking identifies good practices in similar organizations. For public health services, it is not easy to obtain such indicators. The objectives of this paper are to describe the process of conducting a benchmarking exercise for a public health agency, and to share its results. For this purpose, agencies that may be compared were identified, and their websites were searched for annual reports or other documents with indicators of the activities or results of public health services. Limitations and contextual aspects of the indicators of the different organizations were identified, as well as ways to improve their comparability. Finally, a set of 19 indicators is proposed, as an initial core for quality management comparisons.  相似文献   
78.
79.
80.
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