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   1281614篇
  免费   98016篇
  国内免费   1993篇
耳鼻咽喉   18489篇
儿科学   44438篇
妇产科学   35065篇
基础医学   182557篇
口腔科学   33728篇
临床医学   111654篇
内科学   258566篇
皮肤病学   28060篇
神经病学   100561篇
特种医学   51359篇
外国民族医学   660篇
外科学   196765篇
综合类   27106篇
现状与发展   1篇
一般理论   380篇
预防医学   96025篇
眼科学   27995篇
药学   94914篇
  2篇
中国医学   2422篇
肿瘤学   70876篇
  2018年   13187篇
  2017年   10007篇
  2016年   10933篇
  2015年   12422篇
  2014年   17223篇
  2013年   26306篇
  2012年   36160篇
  2011年   38208篇
  2010年   22874篇
  2009年   21867篇
  2008年   36761篇
  2007年   39372篇
  2006年   39640篇
  2005年   38579篇
  2004年   37711篇
  2003年   36574篇
  2002年   35905篇
  2001年   64065篇
  2000年   66575篇
  1999年   56477篇
  1998年   15170篇
  1997年   13786篇
  1996年   14232篇
  1995年   13480篇
  1994年   12789篇
  1993年   11811篇
  1992年   44627篇
  1991年   43525篇
  1990年   42267篇
  1989年   40183篇
  1988年   36941篇
  1987年   36286篇
  1986年   33672篇
  1985年   32332篇
  1984年   24184篇
  1983年   20300篇
  1982年   11747篇
  1981年   10708篇
  1980年   9532篇
  1979年   21383篇
  1978年   14849篇
  1977年   12553篇
  1976年   11722篇
  1975年   12646篇
  1974年   14681篇
  1973年   14143篇
  1972年   12965篇
  1971年   11744篇
  1970年   11065篇
  1969年   10035篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
112.
113.
114.
115.
Parhiala  P.  Ranta  K.  Gergov  V.  Kontunen  J.  Law  R.  La Greca  A. M.  Torppa  M.  Marttunen  M. 《School mental health》2020,12(2):265-283

In order to offer early and accessible treatment for adolescents with depression, brief and effective treatments in adolescents’ everyday surroundings are needed. This randomized controlled trial studied the preliminary effectiveness, feasibility, and acceptability of interpersonal counseling (IPC) and brief psychosocial support (BPS) in school health and welfare services. The study was conducted in the 28 lower secondary schools of a large city in Southern Finland, randomized to provide either IPC or BPS. Help-seeking 12–16-year-old adolescents with mild-to-moderate depression, with and without comorbid anxiety, were included in the study. Fifty-five adolescents received either 6 weekly sessions of IPC or BPS and two follow-up sessions. Outcome measures included self- and clinician-rated measures of depression, global functioning, and psychological distress/well-being. To assess feasibility and acceptability of the treatments, adolescents’ and counselors’ treatment compliance and satisfaction with treatment were assessed. Both treatments were effective in reducing depressive disorders and improving adolescents’ overall functioning and well-being. At post-treatment, in both groups, over 50% of adolescents achieved recovery based on self-report and over 70% based on observer report. Effect sizes for change were medium or large in both groups at post-treatment and increased at 6-month follow-up. A trend indicating greater baseline symptom severity among adolescents treated in the IPC-providing schools was observed. Adolescents and counselors in both groups were satisfied with the treatment, and 89% of the adolescents completed the treatments and follow-ups. This trial suggests that both IPC and BPS are feasible, acceptable, and effective treatments for mild-to-moderate depression in the school setting. In addition, IPC seems effective even if comorbid anxiety exists. Our study shows that brief, structured interventions, such as IPC and BPS, are beneficial in treating mild-to-moderate depression in school settings and can be administered by professionals working at school.

Trial registrationhttp://www.clinicaltrials.gov. Unique identifier: NCT03001245.

  相似文献   
116.
117.
118.
119.
120.
Over the years, the number of total hip replacements has been steadily increasing. Despite the improvement in surgical results, the number of claims for malpractice is higher. The primary endpoint of this work is to provide an analysis of litigation after hip replacement, to outline what are the instigating causes and costs. The secondary endpoint is to propose a possible preventive strategy for an improved care and a reduction in legal proceedings. The data of this study were collected from medical and legal files and from professional liability insurance of our institution from January 2005 to December 2016. Out of a total of 4770 THA, 40 claims were received. Peripheral nerve injuries represent the first cause of litigation (37%), followed by infectious complications, leg length discrepancy, metallosis, dislocations of the implant and a case of deep vein thrombosis. From the analysis of the past trial judgment, complications such as nerve lesions and infections are almost always recognized, as a medical error, with a high percentage of claims settled. This study shows the necessity of preventive strategies to reduce the higher number of claims for malpractice in total hip arthroplasty. Some complications such as nerve injuries and infection are frequently considered directly dependent on physician’s errors. Litigations can be reduced providing evidence of a diligent execution of the surgical procedure and of a proper postoperative management: the correct compilation of a specific informed consent and adequate doctor–patient communication.  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