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   3775116篇
  免费   309603篇
  国内免费   37481篇
耳鼻咽喉   49790篇
儿科学   114398篇
妇产科学   95212篇
基础医学   589147篇
口腔科学   98147篇
临床医学   362523篇
内科学   655663篇
皮肤病学   93071篇
神经病学   315671篇
特种医学   144787篇
外国民族医学   605篇
外科学   555087篇
综合类   152135篇
现状与发展   99篇
一般理论   2308篇
预防医学   318984篇
眼科学   87670篇
药学   269248篇
  361篇
中国医学   27213篇
肿瘤学   190081篇
  2022年   35337篇
  2021年   69981篇
  2020年   46303篇
  2019年   67666篇
  2018年   81615篇
  2017年   63526篇
  2016年   68358篇
  2015年   86771篇
  2014年   124020篇
  2013年   186894篇
  2012年   119974篇
  2011年   124016篇
  2010年   132643篇
  2009年   132571篇
  2008年   101307篇
  2007年   104353篇
  2006年   114533篇
  2005年   109618篇
  2004年   104772篇
  2003年   94154篇
  2002年   82687篇
  2001年   112525篇
  2000年   106940篇
  1999年   106026篇
  1998年   69480篇
  1997年   67347篇
  1996年   64440篇
  1995年   59695篇
  1994年   53369篇
  1993年   49251篇
  1992年   72931篇
  1991年   69775篇
  1990年   66075篇
  1989年   64264篇
  1988年   59613篇
  1987年   58036篇
  1986年   55228篇
  1985年   54934篇
  1984年   49601篇
  1983年   45107篇
  1982年   42159篇
  1981年   39744篇
  1980年   37336篇
  1979年   40913篇
  1978年   35961篇
  1977年   32504篇
  1976年   30340篇
  1975年   28579篇
  1974年   30075篇
  1973年   28961篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
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   

63.
64.
65.
66.
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   
67.
68.
69.
70.
The present study aimed at examining the curative effect of modified posterior operation on treatment of Kümmell''s disease.About 30 patients of Kümmell''s disease with complete image and clinical data treated during June 2004 to July 2013 were conducted with anterior and posterior approaches, respectively. Kyphotic Cobb angle, fractured vertebra wedge angle, and the anterior and posterior heights of fractured vertebra were all measured through x-ray before and after operation, and the pain visual analog scale (VAS) was determined for evaluating the effect of operations. The injury and restoration of neurological function were assessed using Frankel classification.Patients in group A were treated with anterior operation, whereas group B was posterior operation. Postoperatively, VAS score, kyphotic Cobb angle, anterior vertebra height, and pathologic vertebra wedge angle were all significantly improved in patients with Kümmell''s disease receiving modified posterior operation (group B). Similar results were also observed in patients with anterior operation. The improvement of VAS and correction rate of kyphotic Cobb angle indicated equivalent effects of posterior and anterior operations. Meanwhile, alleviated neurological function damage was observed in 2 groups. Relevant factor analysis illustrated that there was no significant correlation of the severity and improvement rate of pain symptoms with age, medical history, anterior and posterior vertebra heights, kyphotic Cobb angle, and pathological vertebra wedge angle.Compared with traditional anterior approach, modified posterior operation, adopting transpedicular vertebral body grafting combined with vertebral pedicle screw fixation, could produce equivalent effects on kyphosis correction, pain relief, and improvement of neurological function in patients with Kümmell''s disease.  相似文献   
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