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   71781篇
  免费   4934篇
  国内免费   238篇
耳鼻咽喉   880篇
儿科学   1645篇
妇产科学   971篇
基础医学   9248篇
口腔科学   1174篇
临床医学   7489篇
内科学   15646篇
皮肤病学   905篇
神经病学   7043篇
特种医学   2485篇
外国民族医学   8篇
外科学   12920篇
综合类   691篇
一般理论   48篇
预防医学   4921篇
眼科学   1326篇
药学   4788篇
中国医学   77篇
肿瘤学   4688篇
  2023年   538篇
  2022年   921篇
  2021年   2120篇
  2020年   1297篇
  2019年   1889篇
  2018年   2328篇
  2017年   1668篇
  2016年   1730篇
  2015年   2008篇
  2014年   2868篇
  2013年   3598篇
  2012年   5557篇
  2011年   5810篇
  2010年   3120篇
  2009年   2864篇
  2008年   4672篇
  2007年   4843篇
  2006年   4573篇
  2005年   4383篇
  2004年   3936篇
  2003年   3764篇
  2002年   3371篇
  2001年   703篇
  2000年   566篇
  1999年   626篇
  1998年   708篇
  1997年   578篇
  1996年   451篇
  1995年   384篇
  1994年   332篇
  1993年   315篇
  1992年   333篇
  1991年   284篇
  1990年   272篇
  1989年   260篇
  1988年   236篇
  1987年   228篇
  1986年   213篇
  1985年   215篇
  1984年   230篇
  1983年   187篇
  1982年   148篇
  1981年   132篇
  1980年   163篇
  1979年   139篇
  1978年   109篇
  1977年   98篇
  1975年   74篇
  1974年   94篇
  1972年   75篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Journal of Children's Orthopaedics - Hip dislocation is seen in approximately 30 % of children with amyoplasia and approximately 50 % of these will be bilateral. Closed...  相似文献   
5.
6.

Introduction

In the United States there has been a large increase in participation in lacrosse for both males and females. The purpose of this study was to analyze the number of head injuries, injury rates (calculated using the reported number of participants) and types of head injuries that are seen in emergency departments in the United States.

Methods

We compared injuries between male and female lacrosse participants. This was a retrospective study using a publicly available database produced by the US Consumer Product Safety Commission and information about lacrosse participation from US Lacrosse.

Results

A linear regression was performed and showed a positive correlation between number of head injuries to males and time from 2002 to 2010 (R2?=?0.823; p?=?0.001). While the number of injuries to the head in female lacrosse participants was not significant. There was a negative correlation between the number of head injuries to males from 2010 to 2016 (R2?=?0.800; p?=?0.007), but again, there was no significance for female injury count (R2?=?0.417; p?=?0.117). Other significant differences between head injuries in males and females included the mechanism of injury and the type of injury recorded.

Conclusion

The most recent data from 2010 to 2016, suggest that both males and females have had a decrease in injury rate. However the total number of female head injuries is not significantly decreasing and as the sport continues to grow there will likely be more total head injuries and visits to the emergency department.  相似文献   
7.
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   
8.
9.
10.
Epistaxis is a common ear, nose and throat emergency. A variety of nasal packs are available to control the bleeding by tamponade. Training of junior doctors to insert nasal packs is difficult when dealing with a bleeding patient. We discovered a readily available and simple model to enable trainees to learn the method of nasal packing.  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