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   2306975篇
  免费   175960篇
  国内免费   6312篇
耳鼻咽喉   30803篇
儿科学   75723篇
妇产科学   64921篇
基础医学   331844篇
口腔科学   62805篇
临床医学   209517篇
内科学   451443篇
皮肤病学   54024篇
神经病学   186891篇
特种医学   89426篇
外国民族医学   752篇
外科学   341217篇
综合类   53239篇
现状与发展   8篇
一般理论   886篇
预防医学   180411篇
眼科学   53358篇
药学   166460篇
  4篇
中国医学   6286篇
肿瘤学   129229篇
  2021年   20330篇
  2019年   20159篇
  2018年   27991篇
  2017年   21401篇
  2016年   24806篇
  2015年   28732篇
  2014年   39225篇
  2013年   57381篇
  2012年   78057篇
  2011年   81875篇
  2010年   48520篇
  2009年   45370篇
  2008年   74099篇
  2007年   77860篇
  2006年   78025篇
  2005年   75267篇
  2004年   71909篇
  2003年   68211篇
  2002年   65436篇
  2001年   107563篇
  2000年   109982篇
  1999年   91712篇
  1998年   26404篇
  1997年   23697篇
  1996年   23701篇
  1995年   22636篇
  1994年   20730篇
  1993年   19360篇
  1992年   70196篇
  1991年   67751篇
  1990年   65585篇
  1989年   62807篇
  1988年   57371篇
  1987年   56835篇
  1986年   53150篇
  1985年   50857篇
  1984年   38548篇
  1983年   32564篇
  1982年   19816篇
  1981年   17694篇
  1979年   34701篇
  1978年   24728篇
  1977年   20730篇
  1976年   19550篇
  1975年   20252篇
  1974年   24555篇
  1973年   23634篇
  1972年   21930篇
  1971年   20124篇
  1970年   19026篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
ABSTRACT

Communication between health professionals and patients is an intergroup phenomenon where the health professional has the most power and status. Over the past few decades, there has been a steady increase in the availability to patients of information about healthcare and specific diseases on the Internet. In this paper, we ask whether the use of Internet health information assists patients to manage their consultations with health professionals better and whether it alters the intergroup dynamic by providing a more equal status for patients. In this study 370 participants from Australia and Canada completed a survey that included a ‘willingness to communicate with health professionals’ scale. They also commented on their use and trust of Internet health information. Thematic analysis suggests that patients’ use of Internet health information serves as a broker between patients and their health provider in health consultations. We discuss the implications of these findings for health practitioners as they address how easier Internet access influences patient interactions with health professionals. We consider future research directions these finding provide in explaining communication behaviour in this context.  相似文献   
9.
10.

Objective

Low psoas muscle area is shown to be an indicator for worse postoperative outcome in patients undergoing vascular surgical. Additionally, it has been associated with longer durations of hospital stay in patients with cancer who undergo surgery and subsequently greater health care costs in Europe and the United States. We sought to evaluate this effect on hospital expenditure for patients undergoing vascular repair in a health care system with universal access.

Methods

Skeletal muscle mass was assessed on preoperative abdominal computed tomography scans of patients undergoing open aortic aneurysm repair in a retrospective fashion. The skeletal muscle index (SMI) was used to define low muscle mass. Health care costs were obtained for all patients and the relationship between a low SMI and higher costs was explored using linear regression and cross-sectional analysis.

Results

We included 156 patients (81.5% male) with a median age of 72 years undergoing elective surgery for infrarenal abdominal aortic aneurysm in this analysis. The median SMI for patients with low skeletal muscle mass was 53.21 cm2/kg and for patients without, 70.07 cm2/kg. Hospital duration of stay was 2 days longer in patients with low skeletal muscle mass as compared with patients with normal (14 days vs 11 days; P = .001), as was duration of intensive care stay (3 days vs 1 day; P = .01). The median overall hospital costs were €10,460 higher for patients with a low SMI as compared with patients with a normal physical constitution (€53,739 [interquartile range, €45,007-€62,471] vs €43,279 [interquartile range, €39,509-€47,049]; P = .001). After confounder adjustment, a low SMI was associated with a 14.68% cost increase in overall hospital costs, for a cost increase of €6521.

Conclusions

Low skeletal muscle mass is independently associated with higher hospital as well as intensive care costs in patients undergoing elective aortic aneurysm repair. Strategies to reduce this risk factor are warranted for these patients.  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