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   176817篇
  免费   10113篇
  国内免费   454篇
耳鼻咽喉   2329篇
儿科学   5708篇
妇产科学   3714篇
基础医学   23958篇
口腔科学   7707篇
临床医学   12997篇
内科学   39761篇
皮肤病学   4448篇
神经病学   14648篇
特种医学   5494篇
外国民族医学   26篇
外科学   21962篇
综合类   1442篇
现状与发展   1篇
一般理论   64篇
预防医学   18301篇
眼科学   3256篇
药学   10745篇
中国医学   711篇
肿瘤学   10112篇
  2023年   911篇
  2022年   2007篇
  2021年   3765篇
  2020年   2529篇
  2019年   3606篇
  2018年   5016篇
  2017年   3742篇
  2016年   3500篇
  2015年   4101篇
  2014年   5614篇
  2013年   7061篇
  2012年   10954篇
  2011年   11491篇
  2010年   5843篇
  2009年   5249篇
  2008年   8883篇
  2007年   9534篇
  2006年   8855篇
  2005年   9107篇
  2004年   8571篇
  2003年   7829篇
  2002年   5894篇
  2001年   5137篇
  2000年   5194篇
  1999年   4530篇
  1998年   1618篇
  1997年   1352篇
  1996年   1321篇
  1995年   1124篇
  1994年   1130篇
  1993年   1011篇
  1992年   2745篇
  1991年   2646篇
  1990年   2422篇
  1989年   2424篇
  1988年   2172篇
  1987年   2009篇
  1986年   1882篇
  1985年   1809篇
  1984年   1288篇
  1983年   1048篇
  1982年   588篇
  1981年   533篇
  1980年   521篇
  1979年   959篇
  1978年   656篇
  1977年   507篇
  1975年   582篇
  1974年   591篇
  1973年   577篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
33.
34.
ObjectiveTo present, the process of development and evaluation of an educational software on the Child Health Handbook proposed for the continuing education of primary care nurses and physicians.MethodsQuantitative study of methodological development. For software development, the following steps were followed: definition of objectives; determination of the target audience; choice of pedagogical and theoretical reference for content; content selection and structuring; software development and evaluation by experts (five nurses and four physicians). All responded to an instrument that included four domains: pedagogical; content; functionality; system presentation and usability. The evaluation criteria were arranged on a Likert-type scale. The percentage of agreement and Content Validity Index were used for the quantitative analysis of the degree of agreement, considering a Content Validity Index cutoff point equal to 0.80.ResultsThe overall agreement index, calculated by the arithmetic mean of the Contents Validity Index of the evaluated domains, was 0.96, with scores ranging from 0.90 to 1.00. The average percentage of agreement of the experts per domain was 92.86%, with lower agreement in the content (80.95%), presentation, and usability (90.48%) domains. 100% of percentage of agreement was observed in the pedagogical and functionality domains among the evaluated specialists.ConclusionThe percentage of agreement, Content Validity Index and overall agreement index of the Child Health Handbook educational software in the context of primary care disclosed the software adequacy as an educational resource for continuing education of primary care nurses and physicians. Considering the assessed dimensions, it can also be used by other health professionals and undergraduate students.  相似文献   
35.
36.
37.
38.
39.

Introduction

The fast track / ultra-fast-track protocols are techniques used to optimise the patient care process and a quick recovery after cardiac surgery. They are one of the mainstays of efficient practice. With their use, the length of hospital and intensive care unit (ICU) stays are reduced, with a direct impact on costs and the quality of the health service.

Objective

To compare the length of stay in the ICU, length of hospital stay, and post-operative mortality in ultra-fast-track extubated (uFTE) patients and those with conventional extubation (CE) after cardiac surgery.

Methods

Longitudinal, analytical, retrospective study was conducted, with the period between the time of surgery and discharge being included as the study period.

Results

A total of 396 patients older than 18 years who required cardiac surgery were included, of whom 207 patients had (uFTE) and 189 had CE. Although the groups were not comparable due to the statistical differences found, when performing the multivariate adjustment, uFTE maintained its statistical independence and was associated with lower cardiovascular morbidity, such as myocardial ischaemia (95% CI: 0.37-0.86; P = .01) and lower post-surgical vasopressor requirement (95% CI: 0.18-0.49; P < .01). No significant differences were found in the length of hospital stay, ICU stay, or post-operative mortality in the ICU.

Conclusion

Implementing the uFTE strategy, decreases cardiovascular morbidity and vasopressor requirement. The change to uFTE should be accompanied by changes in models and practices in patient recovery to standardised protocols. This study shows that uFTE did not reduce the length of ICU stay, hospital stay, or mortality.  相似文献   
40.
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