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   55712篇
  免费   4469篇
  国内免费   170篇
耳鼻咽喉   437篇
儿科学   2204篇
妇产科学   1592篇
基础医学   7877篇
口腔科学   1243篇
临床医学   7307篇
内科学   10929篇
皮肤病学   965篇
神经病学   5332篇
特种医学   1366篇
外科学   5562篇
综合类   573篇
一般理论   72篇
预防医学   6176篇
眼科学   1010篇
药学   3107篇
  2篇
中国医学   85篇
肿瘤学   4512篇
  2024年   69篇
  2023年   480篇
  2022年   655篇
  2021年   1476篇
  2020年   1078篇
  2019年   1582篇
  2018年   1775篇
  2017年   1330篇
  2016年   1515篇
  2015年   1637篇
  2014年   2109篇
  2013年   2963篇
  2012年   4189篇
  2011年   4381篇
  2010年   2444篇
  2009年   2186篇
  2008年   3589篇
  2007年   3720篇
  2006年   3639篇
  2005年   3405篇
  2004年   3262篇
  2003年   2979篇
  2002年   2628篇
  2001年   663篇
  2000年   516篇
  1999年   517篇
  1998年   592篇
  1997年   458篇
  1996年   402篇
  1995年   379篇
  1994年   316篇
  1993年   306篇
  1992年   294篇
  1991年   256篇
  1990年   242篇
  1989年   206篇
  1988年   190篇
  1987年   155篇
  1986年   154篇
  1985年   152篇
  1984年   141篇
  1983年   138篇
  1982年   154篇
  1981年   153篇
  1980年   126篇
  1979年   85篇
  1978年   83篇
  1977年   73篇
  1976年   60篇
  1975年   47篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
911.
912.
913.
914.
915.
Stroke survivors encounter various physical and psychosocial challenges after hospital discharge. Systematic reviews consistently suggest the importance of self-management in promoting post-stroke recovery. However, stroke survivors’ performance of self-management behaviors after returning home is poorly understood. This study was conducted to explore how stroke survivors manage their life after returning home from the hospital. This was a qualitative study with individual, semi-structured interviews. We recruited a purposive sample of adults who had a first or recurrent ischemic or hemorrhagic stroke and currently lived at home. Participants were asked about their post-stroke experiences, challenges encountered, and strategies adopted for managing post-stroke conditions. Data were transcribed verbatim and analyzed using thematic analysis. A total of 30 stroke survivors (mean age = 61.97 years, SD = 10.20) were interviewed. Most were men (n = 18), married (n = 25), and retired (n = 21). Two-thirds had experienced an ischemic stroke. Five key themes emerged: pursuing lifelong learning to live well after a stroke; reinterpreting unpleasant experiences as new learning opportunities; engaging in life activities to better adapt to post-stroke challenges; being confident in oneself to persevere in self-management behaviors; and continuing to accept the current self and explore the new self. Participants regarded learning as a prerequisite for improving their affected functions and managing uncertainties in recovery. Learning requires self-participation, building self-efficacy and positive outcome expectations, testing and adapting strategies to one''s own health conditions, and engaging in leisure or social activities. These findings will guide future development of interventions for enhancing stroke survivors’ recovery outcomes.  相似文献   
916.
917.
918.
Recent dramatic and deadly increases in global wildfire activity have increased attention on the causes of wildfires, their consequences, and how risk from wildfire might be mitigated. Here we bring together data on the changing risk and societal burden of wildfire in the United States. We estimate that nearly 50 million homes are currently in the wildland–urban interface in the United States, a number increasing by 1 million houses every 3 y. To illustrate how changes in wildfire activity might affect air pollution and related health outcomes, and how these linkages might guide future science and policy, we develop a statistical model that relates satellite-based fire and smoke data to information from pollution monitoring stations. Using the model, we estimate that wildfires have accounted for up to 25% of PM2.5 (particulate matter with diameter <2.5 μm) in recent years across the United States, and up to half in some Western regions, with spatial patterns in ambient smoke exposure that do not follow traditional socioeconomic pollution exposure gradients. We combine the model with stylized scenarios to show that fuel management interventions could have large health benefits and that future health impacts from climate-change–induced wildfire smoke could approach projected overall increases in temperature-related mortality from climate change—but that both estimates remain uncertain. We use model results to highlight important areas for future research and to draw lessons for policy.  相似文献   
919.
Digestive Diseases and Sciences - Clostridioides difficile infection (CDI) is caused by Toxins A and B, secreted from pathogenic strains of C. difficle. This infection can vary greatly in symptom...  相似文献   
920.
GeroScience - Apolipoprotein E (APOE) allelic variation is associated with differences in overall circulating lipids and risks of major health outcomes. Lipid profiling provides the opportunity for...  相似文献   
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