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   5091篇
  免费   406篇
  国内免费   60篇
耳鼻咽喉   41篇
儿科学   147篇
妇产科学   223篇
基础医学   646篇
口腔科学   74篇
临床医学   437篇
内科学   1340篇
皮肤病学   115篇
神经病学   625篇
特种医学   160篇
外科学   450篇
综合类   6篇
一般理论   3篇
预防医学   302篇
眼科学   54篇
药学   346篇
中国医学   9篇
肿瘤学   579篇
  2024年   18篇
  2023年   142篇
  2022年   284篇
  2021年   434篇
  2020年   251篇
  2019年   276篇
  2018年   321篇
  2017年   207篇
  2016年   235篇
  2015年   259篇
  2014年   267篇
  2013年   318篇
  2012年   426篇
  2011年   350篇
  2010年   189篇
  2009年   141篇
  2008年   236篇
  2007年   244篇
  2006年   204篇
  2005年   170篇
  2004年   144篇
  2003年   132篇
  2002年   99篇
  2001年   19篇
  2000年   10篇
  1999年   22篇
  1998年   24篇
  1997年   14篇
  1996年   11篇
  1995年   13篇
  1994年   12篇
  1993年   9篇
  1992年   5篇
  1991年   9篇
  1990年   3篇
  1989年   6篇
  1988年   7篇
  1987年   8篇
  1986年   4篇
  1985年   3篇
  1984年   6篇
  1983年   3篇
  1982年   2篇
  1981年   3篇
  1979年   6篇
  1977年   2篇
  1976年   2篇
  1966年   2篇
  1965年   1篇
  1962年   1篇
排序方式: 共有5557条查询结果,搜索用时 15 毫秒
91.
92.
93.
94.
Background: Binge drinking is common among young people but often relevant risk factors are not recognized. eHealth apps, attractive for young people, may be useful to enhance awareness of this problem. We aimed at developing a current risk estimation model for binge drinking, incorporated into an eHealth app—D-ARIANNA (Digital-Alcohol RIsk Alertness Notifying Network for Adolescents and young adults)—for young people. Methods: A longitudinal approach with phase 1 (risk estimation), phase 2 (design), and phase 3 (feasibility) was followed. Risk/protective factors identified from the literature were used to develop a current risk estimation model for binge drinking. Relevant odds ratios were subsequently pooled through meta-analytic techniques with a random-effects model, deriving weighted estimates to be introduced in a final model. A set of questions, matching identified risk factors, were nested in a questionnaire and assessed for wording, content, and acceptability in focus groups involving 110 adolescents and young adults. Results: Ten risk factors (5 modifiable) and 2 protective factors showed significant associations with binge drinking and were included in the model. Their weighted coefficients ranged between ?0.71 (school proficiency) and 1.90 (cannabis use). The model, nested in an eHealth app questionnaire, provides in percent an overall current risk score, accompanied by appropriate images. Factors that mostly contribute are shown in summary messages. Minor changes have been realized after focus groups review. Most of the subjects (74%) regarded the eHealth app as helpful to assess binge drinking risk. Conclusions: We could produce an evidence-based eHealth app for young people, evaluating current risk for binge drinking. Its effectiveness will be tested in a large trial.  相似文献   
95.
96.
Cardiovascular Drugs and Therapy - This study is aimed at investigating gender differences in the medical management of patients with coronary heart disease (CHD). Analyses were based on the ESC...  相似文献   
97.
BACKGROUND Wheat and other gluten-containing grains are widely consumed,providing approximately 50%of the caloric intake in both industrialised and developing countries.The widespread diffusion of gluten-containing diets has rapidly led to a sharp increase in celiac disease prevalence.This condition was thought to be very rare outside Europe and relatively ignored by health professionals and the global media.However,in recent years,the discovery of important diagnostic and pathogenic milestones has led to the emergence of celiac disease(CD)from obscurity to global prominence.These modifications have prompted experts worldwide to identify effective strategies for the diagnosis and follow-up of CD.Different scientific societies,mainly from Europe and America,have proposed guidelines based on CD's most recent evidence.AIM To identify the most recent scientific guidelines on CD,aiming to find and critically analyse the main differences.METHODS We performed a database search on PubMed selecting papers published between January 2010 and January 2021 in the English language.PubMed was lastly accessed on 1 March 2021.RESULTS We distinguished guidelines from 7 different scientific societies whose reputation is worldwide recognized and representative of the clinical practice in different geographical regions.Differences were noted in the possibility of a no-biopsy diagnosis,HLA testing,follow-up protocols,and procedures.CONCLUSION We found a relatively high concordance between the guidelines for CD.Important modifications have occurred in the last years,especially about the possibility of a no-biopsy diagnosis in children.Other modifications are expected in the next future and will probably involve the extension of the non-invasive diagnosis to the adult population and the follow-up modalities.  相似文献   
98.
Heart Failure Reviews - Obstructive (OA) and central apneas (CA) are highly prevalent breathing disorders that have a negative impact on cardiac structure and function; while OA promote the...  相似文献   
99.
100.
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