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   3117篇
  免费   236篇
  国内免费   11篇
耳鼻咽喉   35篇
儿科学   164篇
妇产科学   49篇
基础医学   431篇
口腔科学   47篇
临床医学   179篇
内科学   601篇
皮肤病学   107篇
神经病学   274篇
特种医学   56篇
外科学   525篇
综合类   71篇
预防医学   243篇
眼科学   51篇
药学   337篇
中国医学   18篇
肿瘤学   176篇
  2023年   23篇
  2022年   29篇
  2021年   86篇
  2020年   45篇
  2019年   77篇
  2018年   77篇
  2017年   60篇
  2016年   80篇
  2015年   75篇
  2014年   72篇
  2013年   136篇
  2012年   161篇
  2011年   158篇
  2010年   104篇
  2009年   79篇
  2008年   117篇
  2007年   157篇
  2006年   134篇
  2005年   141篇
  2004年   91篇
  2003年   123篇
  2002年   110篇
  2001年   69篇
  2000年   85篇
  1999年   83篇
  1998年   32篇
  1996年   25篇
  1993年   20篇
  1992年   59篇
  1991年   54篇
  1990年   26篇
  1989年   40篇
  1988年   42篇
  1987年   41篇
  1986年   34篇
  1985年   33篇
  1984年   24篇
  1983年   32篇
  1982年   28篇
  1979年   20篇
  1977年   18篇
  1976年   25篇
  1975年   28篇
  1974年   27篇
  1973年   23篇
  1972年   18篇
  1971年   27篇
  1970年   30篇
  1969年   25篇
  1968年   18篇
排序方式: 共有3364条查询结果,搜索用时 15 毫秒
1.
Tofacitinib is an immunosuppressive and disease-modifying therapy in rheumatoid arthritis. It may result in many infections flaring up. It is important to take precautions of all kinds (cardiovascular, malignancy, infections etc.) before starting tofacitinib. In this article, we have highlighted important steps where we need to take precautions before starting tofacitinib.  相似文献   
2.
3.
4.

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   
5.
6.
7.
A rare case of an advanced primary broad ligament carcinoma is discussed, with a review of the literature regarding its incidence, presentation and management. This patient showed a complete response to adjuvant cisplatin-based chemotherapy following panhysterectomy and is presently without any evidence of disease, 15 months after completion of her treatment.  相似文献   
8.
The return of fertility following discontinuation of norethisterone oenanthate (NET EN) 200 mg injectable contraceptive after use for a minimum period of six months or more was studied in 69 women who discontinued the method for planning pregnancy. Former users of copper intra-uterine device (CuT 200) were enrolled as a control group. Another 161 women who had discontinued NET EN due to other reasons (e.g. amenorrhoea, excessive bleeding or personal reasons) were also studied for return of fertility after ensuring that they were not using any other method of contraception and were exposed to the risk of pregnancy. The subjects from both groups were followed for a period of one year. The cumulative conception rates at one year were 72.5 and 83.6 per 100 subjects for ex-NET EN and ex-CuT 200 users who had discontinued the method for planning pregnancy and this difference was not statistically significant (P > 0.05). The median time for conception for ex-NET EN users was 7.8 months as compared to 3.7 months in ex-CuT 200 users but the cumulative conception rates at the end of one year show that future return of fertility in NET EN users does not appear to be adversely affected.

In 51 subjects who had discontinued NET EN due to amenorrhoea, the return of fertility was predictably slower and less. The return of fertility in subjects who discontinued NET EN for other reasons (e.g. excessive bleeding and other personal reasons) was similar to ex-NET EN and ex-CuT 200 users.  相似文献   

9.
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