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   21935篇
  免费   1426篇
  国内免费   56篇
耳鼻咽喉   397篇
儿科学   471篇
妇产科学   507篇
基础医学   3075篇
口腔科学   2494篇
临床医学   1475篇
内科学   4271篇
皮肤病学   553篇
神经病学   1981篇
特种医学   525篇
外科学   2280篇
综合类   53篇
一般理论   9篇
预防医学   2218篇
眼科学   470篇
药学   1816篇
中国医学   200篇
肿瘤学   622篇
  2024年   17篇
  2023年   274篇
  2022年   333篇
  2021年   764篇
  2020年   508篇
  2019年   740篇
  2018年   1138篇
  2017年   764篇
  2016年   792篇
  2015年   758篇
  2014年   861篇
  2013年   1288篇
  2012年   2067篇
  2011年   2484篇
  2010年   1097篇
  2009年   638篇
  2008年   1619篇
  2007年   1532篇
  2006年   1314篇
  2005年   1111篇
  2004年   959篇
  2003年   734篇
  2002年   634篇
  2001年   213篇
  2000年   276篇
  1999年   140篇
  1998年   50篇
  1997年   30篇
  1996年   32篇
  1995年   29篇
  1994年   29篇
  1993年   24篇
  1992年   14篇
  1991年   12篇
  1990年   13篇
  1989年   5篇
  1988年   4篇
  1987年   5篇
  1985年   15篇
  1984年   8篇
  1983年   4篇
  1982年   7篇
  1981年   16篇
  1980年   12篇
  1979年   4篇
  1978年   9篇
  1977年   5篇
  1976年   3篇
  1975年   6篇
  1974年   6篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.

Background

The ZOE-50 (NCT01165177) and ZOE-70 (NCT01165229) phase 3 clinical trials showed that the adjuvanted recombinant zoster vaccine (RZV) was ≥90% efficacious in preventing herpes zoster in adults. Here we present a comprehensive overview of the safety data from these studies.

Methods

Adults aged ≥50 (ZOE-50) and ≥70 (ZOE-70) years were randomly vaccinated with RZV or placebo. Safety analyses were performed on the pooled total vaccinated cohort, consisting of participants receiving at least one dose of RZV or placebo. Solicited and unsolicited adverse events (AEs) were collected for 7 and 30?days after each vaccination, respectively. Serious AEs (SAEs) were collected from the first vaccination until 12?months post-last dose. Fatal AEs, vaccination-related SAEs, and potential immune-mediated diseases (pIMDs) were collected during the entire study period.

Results

Safety was evaluated in 14,645 RZV and 14,660 placebo recipients. More RZV than placebo recipients reported unsolicited AEs (50.5% versus 32.0%); the difference was driven by transient injection site and solicited systemic reactions that were generally seen in the first week post-vaccination. The occurrence of overall SAEs (RZV: 10.1%; Placebo: 10.4%), fatal AEs (RZV: 4.3%; Placebo: 4.6%), and pIMDs (RZV: 1.2%; Placebo: 1.4%) was balanced between groups. The occurrence of possible exacerbations of pIMDs was rare and similar between groups. Overall, except for the expected local and systemic symptoms, the safety results were comparable between the RZV and Placebo groups irrespective of participant age, gender, or race.

Conclusions

No safety concerns arose, supporting the favorable benefit-risk profile of RZV.  相似文献   
10.
Melatonin, the main hormone produced by the pineal gland, is secreted in a circadian manner (24‐hr period), and its oscillation influences several circadian biological rhythms, such as the regulation of clock genes expression (chronobiotic effect) and the modulation of several endocrine functions in peripheral tissues. Assuming that the circadian synchronization of clock genes can play a role in the regulation of energy metabolism and it is influenced by melatonin, our study was designed to assess possible alterations as a consequence of melatonin absence on the circadian expression of clock genes in the epididymal adipose tissue of male Wistar rats and the possible metabolic repercussions to this tissue. Our data show that pinealectomy indeed has impacts on molecular events: it abolishes the daily pattern of the expression of Clock, Per2, and Cry1 clock genes and Pparγ expression, significantly increases the amplitude of daily expression of Rev‐erbα, and affects the pattern of and impairs adipokine production, leading to a decrease in leptin levels. However, regarding some metabolic aspects of adipocyte functions, such as its ability to synthesize triacylglycerols from glucose along 24 hr, was not compromised by pinealectomy, although the daily profile of the lipogenic enzymes expression (ATP‐citrate lyase, malic enzyme, fatty acid synthase, and glucose‐6‐phosphate dehydrogenase) was abolished in pinealectomized animals.  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