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   3723862篇
  免费   310448篇
  国内免费   13782篇
耳鼻咽喉   51081篇
儿科学   118769篇
妇产科学   97497篇
基础医学   582453篇
口腔科学   103121篇
临床医学   332728篇
内科学   663873篇
皮肤病学   95335篇
神经病学   318213篇
特种医学   149112篇
外国民族医学   497篇
外科学   574314篇
综合类   113967篇
现状与发展   23篇
一般理论   2391篇
预防医学   310917篇
眼科学   86268篇
药学   260519篇
  22篇
中国医学   10160篇
肿瘤学   176832篇
  2021年   55117篇
  2020年   35121篇
  2019年   58042篇
  2018年   71513篇
  2017年   54534篇
  2016年   60333篇
  2015年   74316篇
  2014年   108623篇
  2013年   173732篇
  2012年   98197篇
  2011年   98856篇
  2010年   118076篇
  2009年   122319篇
  2008年   86575篇
  2007年   90117篇
  2006年   101031篇
  2005年   96192篇
  2004年   98727篇
  2003年   89205篇
  2002年   79124篇
  2001年   120917篇
  2000年   115208篇
  1999年   111772篇
  1998年   67080篇
  1997年   64636篇
  1996年   62607篇
  1995年   58217篇
  1994年   52371篇
  1993年   48910篇
  1992年   82985篇
  1991年   79436篇
  1990年   75998篇
  1989年   74668篇
  1988年   69472篇
  1987年   68187篇
  1986年   64976篇
  1985年   64840篇
  1984年   56624篇
  1983年   51313篇
  1982年   44790篇
  1981年   41947篇
  1980年   39552篇
  1979年   48996篇
  1978年   40997篇
  1977年   36806篇
  1976年   34108篇
  1975年   32858篇
  1974年   35577篇
  1973年   34244篇
  1972年   31725篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
4.
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   
5.
6.
7.
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   

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