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   27530篇
  免费   2184篇
  国内免费   82篇
耳鼻咽喉   209篇
儿科学   673篇
妇产科学   612篇
基础医学   4008篇
口腔科学   358篇
临床医学   2816篇
内科学   5486篇
皮肤病学   309篇
神经病学   2549篇
特种医学   618篇
外国民族医学   3篇
外科学   3787篇
综合类   535篇
一般理论   42篇
预防医学   2468篇
眼科学   886篇
药学   2289篇
中国医学   37篇
肿瘤学   2111篇
  2023年   171篇
  2022年   222篇
  2021年   609篇
  2020年   384篇
  2019年   619篇
  2018年   619篇
  2017年   481篇
  2016年   581篇
  2015年   680篇
  2014年   960篇
  2013年   1408篇
  2012年   1969篇
  2011年   2082篇
  2010年   1187篇
  2009年   1034篇
  2008年   1721篇
  2007年   1850篇
  2006年   1909篇
  2005年   1898篇
  2004年   1854篇
  2003年   1610篇
  2002年   1498篇
  2001年   231篇
  2000年   183篇
  1999年   253篇
  1998年   340篇
  1997年   288篇
  1996年   270篇
  1995年   253篇
  1994年   202篇
  1993年   213篇
  1992年   151篇
  1991年   126篇
  1990年   107篇
  1989年   101篇
  1988年   106篇
  1987年   93篇
  1986年   83篇
  1985年   91篇
  1984年   101篇
  1983年   102篇
  1982年   132篇
  1981年   124篇
  1980年   95篇
  1979年   54篇
  1978年   60篇
  1977年   64篇
  1976年   58篇
  1974年   56篇
  1973年   46篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
971.
972.
Two libraries of substituted benzimidazoles were designed using a ‘scaffold‐hopping’ approach based on reported MDM2‐p53 inhibitors. Substituents were chosen following library enumeration and docking into an MDM2 X‐ray structure. Benzimidazole libraries were prepared using an efficient solution‐phase approach and screened for inhibition of the MDM2‐p53 and MDMX‐p53 protein–protein interactions. Key examples showed inhibitory activity against both targets.  相似文献   
973.
974.
975.
976.
Patient-centered care requires that treatments respond to the problematic situation of each patient in a manner that makes intellectual, emotional, and practical sense, an achievement that requires shared decision making (SDM). To implement SDM in practice, tools—sometimes called conversation aids or decision aids—are prepared by collating, curating, and presenting high-quality, comprehensive, and up-to-date evidence. Yet, the literature offers limited guidance for how to make evidence support SDM. Herein, we describe our approach and the challenges encountered during the development of Anticoagulation Choice, a conversation aid to help patients with atrial fibrillation and their clinicians jointly consider the risk of thromboembolic stroke and decide whether and how to respond to this risk with anticoagulation.  相似文献   
977.
978.
979.
ObjectivesThe purpose of this study was to describe coping strategies (eg, mechanisms, including self-treatment) that a person uses to reduce pain and its impact on functioning as reported by patients with chronic low back pain who were seen by doctors of chiropractic and how these coping strategies vary by patient characteristics.MethodsData were collected from a national sample of US chiropractic patients recruited from chiropractic practices in 6 states from major geographical regions of the United States using a multistage stratified sampling strategy. Reports of coping behaviors used to manage pain during the past 6 months were used to create counts across 6 domains: cognitive, self-care, environmental, medical care, social activities, and work. Exploratory analyses examined counts in domains and frequencies of individual items by levels of patient characteristics.ResultsA total of 1677 respondents with chronic low back pain reported using an average of 9 coping behaviors in the prior 6 months. Use of more types of behaviors were reported among those with more severe back pain, who rated their health as fair or poor and who had daily occurrences of pain. Exercise was more frequent among the healthy and those with less pain. Female respondents tended to report using more coping behaviors than men, and Hispanics more than non-Hispanics.ConclusionPersons with chronic back pain were proactive in their coping strategies and frequently used self-care coping strategies like those provided by chiropractors in patient education. In alignment with patients’ beliefs that their condition was chronic and lifelong, many patients attempted a wide range of coping strategies to relieve their pain.  相似文献   
980.
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