首页 | 官方网站   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   384859篇
  免费   25751篇
  国内免费   3221篇
医药卫生   413831篇
  2021年   3128篇
  2019年   3006篇
  2018年   4842篇
  2017年   3733篇
  2016年   3773篇
  2015年   4386篇
  2014年   6124篇
  2013年   7801篇
  2012年   10630篇
  2011年   10796篇
  2010年   6551篇
  2009年   6157篇
  2008年   9830篇
  2007年   10658篇
  2006年   10456篇
  2005年   9537篇
  2004年   8961篇
  2003年   8686篇
  2002年   8336篇
  2001年   28391篇
  2000年   28868篇
  1999年   23758篇
  1998年   5212篇
  1997年   4303篇
  1996年   3882篇
  1995年   3516篇
  1994年   3133篇
  1993年   2857篇
  1992年   16078篇
  1991年   14830篇
  1990年   14166篇
  1989年   13971篇
  1988年   12601篇
  1987年   12067篇
  1986年   11116篇
  1985年   10323篇
  1984年   6912篇
  1983年   5599篇
  1982年   2722篇
  1979年   5479篇
  1978年   3348篇
  1977年   2968篇
  1975年   2638篇
  1974年   3064篇
  1973年   2863篇
  1972年   2828篇
  1971年   2773篇
  1970年   2509篇
  1969年   2543篇
  1968年   2250篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
Abstract

Purpose: We examined underlying psychosocial processes of a behavioral treatment for urinary incontinence (UI) of prostate cancer survivors.

Design: Secondary analysis of data collected from a clinical trial.

Sample: Two hundred forty-four prostate cancer survivors who participated in a clinical trial of behavioral intervention to UI as intervention or control subjects.

Methods: The participants had a 3-month behavioral intervention or usual care and were followed up for an additional 3?months. They were assessed at baseline, 3, and 6?months. Latent growth curve models were performed to examine trajectories of each study variable and relationships among the variables.

Findings: Increasing self-efficacy and social support were significantly and independently associated with more reduction of urinary leakage frequency over time.

Implications for psychosocial oncology: Providing problem-solving skills and social support, including peer support, are essential for empowering patients to reduce UI.  相似文献   
73.
74.
75.
76.
77.
78.
79.
This paper describes a study to capture the key roles and activities of nephrology nurses across different countries in Europe. The concept of the study and the need to clarify the activities of the nephrology nurse arose as part of a larger study to develop the European Practice Database (EPD) (1). The Research Board (EDTNA/ERCA) needed to identify key questions that would detect significant differences in the role and responsibilities of nephrology nurses in different countries and monitor the evolution over time of nephrology nursing practice in Europe. It was therefore appropriate to devise a separate small study to generate evidence based questions for the EPD and confirm the reliability and usefulness of the information captured.  相似文献   
80.
Conclusion  Several quality-control measures take place before (patient and camera preparation) and during SPECT acquisition to achieve high-quality images. Not uncommonly, technologists and physicians are left with suboptimal images that have to be addressed to reach the “right answer” for patient diagnosis and hence management. In many cases patients may be reimaged, especially if the problem is detected early, but in other cases either the patient has left the nuclear laboratory or there is an inevitable problem that, even with reimaging, will not be resolved. In these situations the technologist and physician have to seek the available techniques to obtain the best images possible. These resources are discussed in this issue as an aid in quality control to obtain the best possible images.  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-23

京公网安备 11010802026262号