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   22607篇
  免费   2078篇
  国内免费   23篇
耳鼻咽喉   219篇
儿科学   597篇
妇产科学   580篇
基础医学   2659篇
口腔科学   403篇
临床医学   2311篇
内科学   4610篇
皮肤病学   384篇
神经病学   2150篇
特种医学   780篇
外国民族医学   3篇
外科学   3397篇
综合类   506篇
一般理论   43篇
预防医学   2444篇
眼科学   306篇
药学   1533篇
中国医学   30篇
肿瘤学   1753篇
  2021年   322篇
  2020年   201篇
  2019年   396篇
  2018年   497篇
  2017年   342篇
  2016年   315篇
  2015年   405篇
  2014年   564篇
  2013年   838篇
  2012年   1156篇
  2011年   1187篇
  2010年   738篇
  2009年   658篇
  2008年   1107篇
  2007年   1194篇
  2006年   1195篇
  2005年   1162篇
  2004年   1066篇
  2003年   993篇
  2002年   911篇
  2001年   597篇
  2000年   627篇
  1999年   558篇
  1998年   260篇
  1997年   190篇
  1996年   206篇
  1995年   231篇
  1994年   178篇
  1993年   166篇
  1992年   418篇
  1991年   408篇
  1990年   355篇
  1989年   365篇
  1988年   329篇
  1987年   318篇
  1986年   287篇
  1985年   304篇
  1984年   258篇
  1983年   219篇
  1982年   168篇
  1981年   147篇
  1979年   239篇
  1978年   173篇
  1977年   142篇
  1975年   138篇
  1974年   148篇
  1973年   190篇
  1972年   186篇
  1971年   158篇
  1969年   147篇
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
1.
2.
3.
4.
A 12‐year‐old boy presented with severe, bilateral foot dermatitis. Extended patch testing was performed, revealing a significant positive reaction to mixed dialkyl thioureas. A thorough review of his history revealed that he was likely being exposed through his neoprene taekwondo shoes. After implementation of allergen avoidance measures, his dermatitis resolved. This case emphasizes awareness of potential allergen exposures and offers helpful avoidance strategies.  相似文献   
5.
6.
Multiple professional groups and societies worldwide have produced airway management guidelines. These are typically targeted at the process of tracheal intubation by a particular provider group in a restricted category of patients and reflect practice preferences in a particular geographical region. The existence of multiple distinct guidelines for some (but not other) closely related circumstances, increases complexity and may obscure the underlying principles that are common to all of them. This has the potential to increase cognitive load; promote the grouping of ideas in silos; impair teamwork; and ultimately compromise patient care. Development of a single set of airway management guidelines that can be applied across and beyond these domains may improve implementation; promote standardisation; and facilitate collaboration between airway practitioners from diverse backgrounds. A global multidisciplinary group of both airway operators and assistants was assembled. Over a 3-year period, a review of the existing airway guidelines and multiple reviews of the primary literature were combined with a structured process for determining expert consensus. Any discrepancies between these were analysed and reconciled. Where evidence in the literature was lacking, recommendations were made by expert consensus. Using the above process, a set of evidence-based airway management guidelines was developed in consultation with airway practitioners from a broad spectrum of disciplines and geographical locations. While consistent with the recommendations of the existing English language guidelines, these universal guidelines also incorporate the most recent concepts in airway management as well as statements on areas not widely addressed by the existing guidelines. The recommendations will be published in four parts that respectively address: airway evaluation; airway strategy; airway rescue and communication of airway outcomes. Together, these universal guidelines will provide a single, comprehensive approach to airway management that can be consistently applied by airway practitioners globally, independent of their clinical background or the circumstances in which airway management occurs.  相似文献   
7.
This guideline is an update of the 2011 European Guideline for the Management of Anogenital Warts. It is intended to support best practice in the care of patients with anogenital warts by including evidence-based recommendations on diagnosis, treatment, follow-up and advice to patients. It is intended for use by healthcare professionals in sexual healthcare or dermato-venereology clinics in Europe but may be adapted for use in other settings where the management of anogenital warts is undertaken. As a European guideline, recommendations should be adapted according to national circumstances and healthcare systems. Despite the availability of vaccine to prevent HPV types 6 and 11, the cause of >95% anogenital warts, they remain an important and frequent health problem. The previous systematic review of randomized controlled trials for anogenital warts was updated. The changes in the present guideline include the following: Updated background information on the prevalence, natural history and transmission of human papillomavirus (HPV) infection and anogenital warts. Key recommendations for diagnosis and treatment have been graded according to the strength of the recommendation and the quality of supporting evidence. 5-fluorouracil, local interferon and photodynamic therapy have been evaluated and included as potential second-line treatment options. Evidence of the impact of HPV vaccination on the incidence of anogenital warts has been updated.  相似文献   
8.
9.

Social phobia commonly co-occurs with substance use disorders and depression; however, the prevalence and correlates of social phobia among individuals with both of these disorders remain unknown. Interviews were conducted with 120 individuals entering residential rehabilitation for substance use treatment, who endorsed criteria for major depression and were recruited to a randomised controlled trial. Nearly three quarters (72.5%) of the sample met diagnostic criteria for social phobia. These individuals were more likely to report problematic drinking, more severe anxiety and depressive rumination, and lower distress tolerance, compared to individuals without social phobia. When examining the impact of applying diagnostic exclusion rules for social phobia among this cohort, results indicate that one third (32.2%) of those with social phobia specified their fear was related to a co-occurring mental health and/or substance use disorder. This group—who would not have met diagnostic criteria for social phobia if exclusion rules were strictly followed—experienced more severe depression, anxiety, depressive rumination, and repetitive negative thinking than those who did not make such attributions. The high prevalence and burden associated with social phobia among depressed substance users highlight the importance of screening for, assessing, and treating the disorder upon entry to treatment, irrespective of whether symptoms are related to other conditions.

  相似文献   
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