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   151905篇
  免费   10987篇
  国内免费   4000篇
耳鼻咽喉   1094篇
儿科学   2669篇
妇产科学   2036篇
基础医学   8420篇
口腔科学   2988篇
临床医学   17267篇
内科学   21527篇
皮肤病学   2729篇
神经病学   7363篇
特种医学   4398篇
外国民族医学   39篇
外科学   13496篇
综合类   21293篇
现状与发展   23篇
一般理论   2篇
预防医学   8967篇
眼科学   2187篇
药学   20000篇
  81篇
中国医学   11540篇
肿瘤学   18773篇
  2024年   358篇
  2023年   2532篇
  2022年   4854篇
  2021年   6398篇
  2020年   5940篇
  2019年   5332篇
  2018年   5112篇
  2017年   5548篇
  2016年   5887篇
  2015年   5815篇
  2014年   10902篇
  2013年   13727篇
  2012年   9239篇
  2011年   9985篇
  2010年   8044篇
  2009年   7385篇
  2008年   7283篇
  2007年   7531篇
  2006年   6719篇
  2005年   5880篇
  2004年   4770篇
  2003年   4242篇
  2002年   3418篇
  2001年   3027篇
  2000年   2546篇
  1999年   2074篇
  1998年   1650篇
  1997年   1417篇
  1996年   1172篇
  1995年   1064篇
  1994年   899篇
  1993年   686篇
  1992年   618篇
  1991年   532篇
  1990年   468篇
  1989年   408篇
  1988年   415篇
  1987年   358篇
  1986年   304篇
  1985年   361篇
  1984年   342篇
  1983年   228篇
  1982年   231篇
  1981年   214篇
  1980年   192篇
  1979年   170篇
  1978年   121篇
  1977年   93篇
  1976年   108篇
  1975年   97篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Lesbian, gay, bisexual, transgender, queer and two-spirit plus (LGBTQ2S+) people have distinct healthcare needs that may be unaddressed in many undergraduate healthcare curricula. The Radiation Therapy Program (RADTH) at the University of Alberta underwent a review of the three-year didactic curriculum using an online survey. The survey sought to ascertain if, where and how topics related to LGBTQ2S + healthcare are taught. Results indicated that out of 10 RADTH program faculty respondents, three teach related topics. The total time dedicated within the three-year curriculum was approximately three and a half hours. Other findings showed that faculty are interested in receiving more education in this area and would favour discussions about how to incorporate these themes into appropriate courses. This preliminary investigation demonstrated that there has been some initial work in this area, but there is more to be done.  相似文献   
3.
4.
5.
6.
IntroductionPembrolizumab has shown clinical benefit in patients with previously treated recurrent or metastatic SCLC in the phase 1b multicohort study KEYNOTE-028 (NCT02054806) and the phase 2 multicohort study KEYNOTE-158 (NCT02628067). We present a pooled analysis of patients from KEYNOTE-028 and KEYNOTE-158 who had received two or more lines of previous therapy for SCLC.MethodsEligible patients were aged 18 years and above, had histologically or cytologically confirmed incurable recurrent or metastatic SCLC, had an Eastern Cooperative Oncology Group performance status of 1 and below, and had received two or more lines of previous therapy. Patients in KEYNOTE-028 were required to have a programmed death ligand 1 (PD-L1)–positive tumor. Patients received pembrolizumab (10 mg/kg every 2 weeks in KEYNOTE-028 or 200 mg every 3 weeks in KEYNOTE-158) for up to 2 years. The primary end point was objective response rate per Response Evaluation Criteria in Solid Tumors version 1.1, which is presented here per independent review.ResultsEighty-three patients who had received two or more lines of previous therapy (KEYNOTE-028, n = 19; KEYNOTE-158, n = 64) were included. Median follow-up duration was 7.7 (range, 0.5–48.7) months. Objective response rate was 19.3% (95% confidence interval: 11.4–29.4); two patients had complete response (one with a PD-L1–positive tumor), and 14 patients had partial response (13 with PD-L1–positive tumors). The median duration of response was not reached (range, 4.1‒35.8+ mo; plus sign indicates ongoing response); 61% of responders had responses lasting 18 months or longer. Fifty-one patients (61.4%) experienced any-grade treatment-related adverse events; eight patients (9.6%) had grade 3 or higher events.ConclusionsPembrolizumab exhibited durable antitumor activity in a subset of patients with recurrent or metastatic SCLC who had undergone two or more previous lines of therapy, regardless of PD-L1 expression. Pembrolizumab was well tolerated.  相似文献   
7.
8.
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