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   14609篇
  免费   1020篇
  国内免费   79篇
耳鼻咽喉   105篇
儿科学   436篇
妇产科学   482篇
基础医学   1995篇
口腔科学   213篇
临床医学   993篇
内科学   2895篇
皮肤病学   265篇
神经病学   1347篇
特种医学   486篇
外国民族医学   1篇
外科学   2076篇
综合类   174篇
一般理论   7篇
预防医学   1248篇
眼科学   277篇
药学   1005篇
中国医学   59篇
肿瘤学   1644篇
  2023年   58篇
  2022年   139篇
  2021年   359篇
  2020年   228篇
  2019年   260篇
  2018年   370篇
  2017年   281篇
  2016年   280篇
  2015年   351篇
  2014年   437篇
  2013年   636篇
  2012年   809篇
  2011年   840篇
  2010年   569篇
  2009年   473篇
  2008年   714篇
  2007年   763篇
  2006年   709篇
  2005年   639篇
  2004年   680篇
  2003年   607篇
  2002年   662篇
  2001年   528篇
  2000年   470篇
  1999年   433篇
  1998年   180篇
  1997年   145篇
  1996年   139篇
  1995年   135篇
  1994年   103篇
  1993年   100篇
  1992年   253篇
  1991年   243篇
  1990年   228篇
  1989年   230篇
  1988年   177篇
  1987年   148篇
  1986年   166篇
  1985年   153篇
  1984年   117篇
  1983年   89篇
  1982年   54篇
  1981年   54篇
  1979年   71篇
  1976年   44篇
  1975年   43篇
  1974年   50篇
  1973年   43篇
  1969年   45篇
  1968年   43篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
Purpose: To evaluate the rate and onset of intraoperative and postoperative complications post-phacoemulsification. Methods: One hundred sixty-two eyes of 145 patients with uveitis who underwent phacoemulsification between 2006 and 2009 were identified through surgical record review. Fifty-nine eyes of 46 patients met the inclusion criteria. Hazard ratio (HR) and Kaplan-Meier survival probability were calculated for each class of uveitis. Results: Macular edema (ME) resulted to be associated to chronic postoperative inflammation (r?=?0.6; p?=?0.00) and mostly related to patients who presented more than one postoperative relapse/year (r?=?0.2; p?=?0.02). Fuchs uveitis resulted to be a risk factor for posterior capsule opacification (PCO) (HR 3.36 IC95%1.0-10.5; p?=?0.03). Hypotony and elevated intraocular pressure (IOP) were detected in the anterior uveitis group (0.02 EY). Conclusion: The HR to develop ME was significantly related to chronic anterior uveitis. PCO and elevated IOP are most frequent in Fuchs uveitis. The postoperative visual acuity result was good among all the uveitis groups.  相似文献   
7.
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   
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