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   136337篇
  免费   41942篇
  国内免费   135篇
耳鼻咽喉   1829篇
儿科学   5406篇
妇产科学   849篇
基础医学   27057篇
口腔科学   7076篇
临床医学   15541篇
内科学   32926篇
皮肤病学   4760篇
神经病学   18623篇
特种医学   5958篇
外国民族医学   1篇
外科学   16017篇
综合类   1456篇
现状与发展   2篇
一般理论   25篇
预防医学   13888篇
眼科学   1452篇
药学   10940篇
  1篇
中国医学   1956篇
肿瘤学   12651篇
  2024年   33篇
  2023年   390篇
  2022年   636篇
  2021年   2248篇
  2020年   6713篇
  2019年   12163篇
  2018年   11831篇
  2017年   13043篇
  2016年   12233篇
  2015年   12042篇
  2014年   12263篇
  2013年   14027篇
  2012年   11352篇
  2011年   11468篇
  2010年   10028篇
  2009年   6481篇
  2008年   7062篇
  2007年   5434篇
  2006年   5176篇
  2005年   4610篇
  2004年   4466篇
  2003年   4084篇
  2002年   3777篇
  2001年   2926篇
  2000年   1727篇
  1999年   516篇
  1998年   265篇
  1997年   272篇
  1996年   165篇
  1995年   161篇
  1994年   148篇
  1993年   152篇
  1992年   137篇
  1991年   125篇
  1990年   96篇
  1989年   83篇
  1988年   49篇
  1987年   31篇
  1986年   1篇
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
11.
12.
The value of adding simeprevir (SMV) vs placebo (PBO) to peginterferon and ribavirin (PR) for treatment of chronic hepatitis C virus infection was examined using patient‐reported outcomes (PROs); further, concordance of PROs with virology endpoints and adverse events (AEs) was explored. Patients (= 768 SMV/PR,= 393 PBO/PR) rated fatigue (FSS), depressive symptoms (CES‐D) and functional impairment (WPAI: Hepatitis C Productivity, Daily Activity and Absenteeism) at baseline and throughout treatment in three randomised, double‐blind trials comparing the addition of SMV or PBO during initial 12 weeks of PR. PR was administered for 48 weeks (PBO group) and 24/48 weeks (SMV group) using a response‐guided therapy (RGT) approach. Mean PRO scores (except Absenteeism) worsened from baseline to Week 4 to the same extent in both groups but reverted after Week 24 for SMV/PR and only after Week 48 for PBO/PR. Accordingly, there was a significantly lower area under the curve (baseline–Week 60, AUC60) and fewer weeks with clinically important worsening of scores in the SMV/PR group at any time point. Incidences of patients with fatigue and anaemia AEs were similar in both groups, but FSS scores showed that clinically important increases in fatigue lasted a mean of 6.9 weeks longer with PBO/PR (P < 0.001). PRO score subgroup analysis indicated better outcomes for patients who met the criteria for RGT or achieved sustained virological response 12 weeks post‐treatment (SVR12); differences in mean PRO scores associated with fibrosis level were only observed with PBO/PR. Greater efficacy of SMV/PR enabled reduced treatment duration and reduced time with PR‐related AEs without adding to AE severity.  相似文献   
13.
14.
15.
16.
17.
18.
In HIV/AIDS research, few studies to date have evaluated ways to improve parental HIV disclosure practices using feedback from HIV-negative children who have recently experienced this event. We conducted semi-structured in-depth interviews with 20 children (aged 6–15) who were partially to fully aware of their parents’ HIV status in rural Guangxi, China. Of the 20 children, eight children who were of older age (11.38 years in average) endorsed parental HIV disclosure, five discouraged it and seven expressed uncertainty. Children’s different experiences and attitudes towards disclosure were seen to be associated with their family dynamics (especially the parent–child relationship), social support and care, experiences of stigma and discrimination, psychosocial suffering, comprehension of the disease and the children’s age. Our study contributes to building a child-centered comprehensive understanding for Chinese parental HIV disclosure. It is imperative that counselors and community advocates assess and help parents achieve optimal readiness preceding disclosure of their illness to their HIV-negative children.  相似文献   
19.
20.
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