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   37340篇
  免费   6580篇
  国内免费   99篇
耳鼻咽喉   181篇
儿科学   1114篇
妇产科学   2077篇
基础医学   2595篇
口腔科学   544篇
临床医学   18137篇
内科学   5249篇
皮肤病学   396篇
神经病学   1948篇
特种医学   877篇
外科学   3065篇
综合类   355篇
一般理论   32篇
预防医学   3907篇
眼科学   366篇
药学   1141篇
中国医学   24篇
肿瘤学   2011篇
  2023年   839篇
  2022年   202篇
  2021年   495篇
  2020年   820篇
  2019年   523篇
  2018年   1429篇
  2017年   1607篇
  2016年   1708篇
  2015年   1783篇
  2014年   1958篇
  2013年   2570篇
  2012年   1483篇
  2011年   1900篇
  2010年   1634篇
  2009年   1897篇
  2008年   1727篇
  2007年   1617篇
  2006年   1580篇
  2005年   1487篇
  2004年   1462篇
  2003年   1328篇
  2002年   1205篇
  2001年   811篇
  2000年   632篇
  1999年   758篇
  1998年   790篇
  1997年   883篇
  1996年   797篇
  1995年   716篇
  1994年   532篇
  1993年   469篇
  1992年   552篇
  1991年   499篇
  1990年   471篇
  1989年   422篇
  1988年   323篇
  1987年   337篇
  1986年   322篇
  1985年   367篇
  1984年   255篇
  1983年   244篇
  1982年   209篇
  1981年   196篇
  1980年   148篇
  1979年   211篇
  1978年   151篇
  1977年   155篇
  1976年   161篇
  1975年   121篇
  1972年   173篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
We report a case of an intra-articular vascular malformation occurring simultaneously with a ganglion in a knee joint. We believe this to be the first reported case of an intra-articular vascular malformation occurring simultaneously with a ganglion. The malformation was cauterized resulting in resolution of knee pain. We suggest that vascular malformations be considered in the differential diagnosis of knee pain.  相似文献   
42.
43.
44.
Milieu relationships provide the critical background presence to staff's attempts to motivate, regulate, and teach patients how to cope with stress. Forging a connection with hospitalized children and adolescents demands attention to how they respond to adults and engage with staff around milieu expectations. Assessment guides that deal with these issues are presented. Important aspects of children's relatedness are presented in the context of their working models of adults and the influence of these representations on their response to staff. Coping skills are explained with particular emphasis on behavioral coping strategies. Tied to the assessment process are interventions that emphasize staff's role in helping patients manage strong affects and avoid the use of nonproductive behavior regulation strategies.  相似文献   
45.
PROBLEM: Recent developments in providing care to children with emotional and behavioral disorders, especially those with serious emotional disturbance, have included the establishment of systems of care. Guided by a set of principles and values, these systems of care have organized and delivered services to children and families with complex needs. To date, nurses have not had a salient role in systems of care. RESULTS: It is estimated that 20% of American children and adolescents have an emotional or mental disorder. As many as two thirds of these children are not receiving services. Systems of care have been funded to provide services for these children, particularly for the most severely affected. To date, nursing has not had a prominent role in these systems of care. CONCLUSIONS: Based on their knowledge, skills, and holistic approach to care, nurses could better integrate nursing care into systems of care. Possible roles as case managers, primary therapists, in-home interventionists, and in educational programs are suggested.  相似文献   
46.
Anorexia nervosa (AN) can cause both functional and structural cardiac complications, including a variety of different conduction abnormalities. This is the first case report of symptomatic diurnal second‐degree atrioventricular (AV) block (Mobitz Type I) in an adolescent with AN. We present a 12‐year‐old girl with AN, restrictor sub‐type who reported cardiac symptoms during weight gain, at the time of the initial diagnosis of AV block. Second‐degree AV block (Mobitz Type I) is discussed as a possible complication of the AN, as well as being an intrinsic conduction system disease. © 2009 by Wiley Periodicals, Inc. Int J Eat Disord 2009  相似文献   
47.
Many people die in emergency departments (EDs) across the United States from sudden illnesses or injuries, an exacerbation of a chronic disease, or a terminal illness. Frequently, patients and families come to the ED seeking lifesaving or life-prolonging treatment. In addition, the ED is a place of transition-patients usually are transferred to an inpatient unit, transferred to another hospital, or discharged home. Rarely are patients supposed to remain in the ED. Currently, there is an increasing amount of literature related to end-of-life care. However, these end-of-life care models are based on chronic disease trajectories and have difficulty accommodating sudden-death trajectories common in the ED. There is very little information about end-of-life care in the ED. This article explores ED culture and characteristics, and examines the applicability of current end-of-life care models.  相似文献   
48.
49.
Since the mid-1970s, the Margaret Sanger Center of Planned Parenthood of New York City has prepared nurses and nurse midwives from less developed countries to be family-planning nurse practitioners. These nurse practitioners then provide services to patients, train other staff, and manage integrated family-planning clinics. More than 120 nurses and nurse midwives have arrived in groups of 10 at the Sanger Center, with 72 attending since 1981. Each course lasts 10 weeks. The core curriculum provides trainees with skills in women's health care including contraception, in training and advocacy, and in management of clinics. Whether, in the current period of scarce resources, cross-cultural training programs of this type remain a worthwhile investment, and if so, which of their components are most important to this success, is assessed.  相似文献   
50.
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