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   3163996篇
  免费   236146篇
  国内免费   4859篇
耳鼻咽喉   45076篇
儿科学   105150篇
妇产科学   86180篇
基础医学   460652篇
口腔科学   87103篇
临床医学   284800篇
内科学   612990篇
皮肤病学   69869篇
神经病学   250311篇
特种医学   120542篇
外国民族医学   1096篇
外科学   478996篇
综合类   67435篇
现状与发展   12篇
一般理论   1119篇
预防医学   247101篇
眼科学   74328篇
药学   236388篇
  11篇
中国医学   6294篇
肿瘤学   169548篇
  2019年   25248篇
  2018年   35144篇
  2017年   26402篇
  2016年   29626篇
  2015年   33538篇
  2014年   47106篇
  2013年   71059篇
  2012年   97894篇
  2011年   104078篇
  2010年   62048篇
  2009年   58651篇
  2008年   97796篇
  2007年   104401篇
  2006年   105304篇
  2005年   101947篇
  2004年   98172篇
  2003年   94654篇
  2002年   92104篇
  2001年   144999篇
  2000年   149229篇
  1999年   126235篇
  1998年   36580篇
  1997年   32214篇
  1996年   32589篇
  1995年   30916篇
  1994年   28744篇
  1993年   26870篇
  1992年   98623篇
  1991年   96613篇
  1990年   94049篇
  1989年   90264篇
  1988年   83076篇
  1987年   81867篇
  1986年   76500篇
  1985年   73632篇
  1984年   55029篇
  1983年   46730篇
  1982年   27742篇
  1981年   24983篇
  1979年   50376篇
  1978年   35740篇
  1977年   30021篇
  1976年   28489篇
  1975年   30782篇
  1974年   36500篇
  1973年   34930篇
  1972年   32578篇
  1971年   30487篇
  1970年   28423篇
  1969年   26753篇
排序方式: 共有10000条查询结果,搜索用时 500 毫秒
41.
42.
BackgroundThe aim of this study was to estimate the prevalence of dental prosthetic treatment and to investigate the demographic, social, economic and medical factors associated with the use of fixed and removable dentures in a representative sample of adults living in France.MethodsThe data were obtained from the 2002–2003 Decennial Health Survey, a cross-sectional study of a representative sample of the population living in France, which included 29,679 adults. Information was collected by interview. The variables collected were fixed denture, removable denture, age, gender, number of children, area of residence, nationality, educational attainment, family social status, employment status, annual household income per capita, supplementary insurance, chronic disease, eyesight problems/glasses, hearing problems/hearing aids. Multinomial logistic regression models were used to study the relationship between prosthetic treatment and demographic, socioeconomic and medical characteristics unadjusted, adjusted for age and adjusted for all the characteristics.ResultsThe prevalence of prosthetic treatment was 34.6% (95% confidence interval (CI): [34.1; 35.2]) for fixed prosthetic dentures and 13.8% (95% CI: [13.4; 14.2]) for removable prosthetic dentures. We showed a gradient between educational attainment and removable dentures; the odds ratio adjusted for all the variables (aOR) associated with no or primary education compared to post-secondary education was 2.56; 95% CI: [2.09; 3.13]. When annual household income per capita was low, subjects were less likely to report fixed dentures (aOR = 0.68; 95% CI: [0.62; 0.75]) than those with high annual household income per capita. Individuals without insurance less often reported fixed dentures than those with private insurance. Those reporting chronic disease were less likely to report fixed dentures (aOR = 0.87; 95% CI: [0.79; 0.95]) but more likely to report removable dentures (aOR = 1.29; 95% CI: [1.17; 1.43]) than those without chronic disease.ConclusionThis study reveals social, economic and medical inequalities in fixed and removable prosthetic treatment among adults in France.  相似文献   
43.
44.
45.
Background: Traumatic brain injury (TBI) results in verbal recall deficits and impaired processing of emotion encoded in facial appearance, prosody and the linguistic content of messages. Emotion facilitates memory (emotional memory advantage) for non-brain injured (NBI) individuals but the impact of emotion on verbal recall for linguistically encoded stimuli in TBI has not been explored.

Aims: The purpose of this study was to determine the effects of stimulus emotional content on verbal recall of words and paragraphs in TBI compared to NBI individuals.

Methods and procedures: Six 10-item lists, each with five emotional and five neutral words, and six paragraphs (three emotional, three neutral) were counterbalanced and presented in random order to 20 individuals with TBI and 44 NBI. The number of words from lists and the number of content units from paragraphs were compared for the two groups.

Outcomes and results: The NBI participants recalled more words from the lists and content units from the paragraphs than the individuals with TBI. Both groups recalled significantly more emotional than neutral words. NBI but not TBI participants had significantly greater recall for information in paragraphs with emotional content.

Conclusions: Participants with TBI showed impaired recall of words and paragraph content. Emotion facilitated word and paragraph content recall for neurotypical individuals but emotional memory advantage was limited to words for the TBI participants.  相似文献   

46.
47.
Graefe's Archive for Clinical and Experimental Ophthalmology - The published online version contains mistake as the author's first name and last name have been interchanged as "Hild...  相似文献   
48.
49.
50.
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