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   3157517篇
  免费   236066篇
  国内免费   4744篇
耳鼻咽喉   44877篇
儿科学   105212篇
妇产科学   86067篇
基础医学   459581篇
口腔科学   86938篇
临床医学   284471篇
内科学   611342篇
皮肤病学   69847篇
神经病学   249965篇
特种医学   120201篇
外国民族医学   1096篇
外科学   478235篇
综合类   67391篇
现状与发展   12篇
一般理论   1130篇
预防医学   247131篇
眼科学   73997篇
药学   235691篇
  10篇
中国医学   6138篇
肿瘤学   168995篇
  2019年   25063篇
  2018年   34888篇
  2017年   26228篇
  2016年   29381篇
  2015年   33086篇
  2014年   46670篇
  2013年   70512篇
  2012年   97104篇
  2011年   103325篇
  2010年   61623篇
  2009年   58293篇
  2008年   97370篇
  2007年   104047篇
  2006年   104932篇
  2005年   101657篇
  2004年   97952篇
  2003年   94530篇
  2002年   92017篇
  2001年   144903篇
  2000年   149187篇
  1999年   126219篇
  1998年   36590篇
  1997年   32256篇
  1996年   32616篇
  1995年   30945篇
  1994年   28767篇
  1993年   26906篇
  1992年   98667篇
  1991年   96694篇
  1990年   94114篇
  1989年   90371篇
  1988年   83154篇
  1987年   81956篇
  1986年   76572篇
  1985年   73746篇
  1984年   55099篇
  1983年   46783篇
  1982年   27782篇
  1981年   25043篇
  1979年   50459篇
  1978年   35810篇
  1977年   30088篇
  1976年   28539篇
  1975年   30831篇
  1974年   36547篇
  1973年   34973篇
  1972年   32626篇
  1971年   30531篇
  1970年   28440篇
  1969年   26744篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
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   
42.
43.
44.
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   

45.
46.
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   
47.
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