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   38616篇
  免费   6280篇
  国内免费   161篇
耳鼻咽喉   400篇
儿科学   886篇
妇产科学   1996篇
基础医学   3055篇
口腔科学   1863篇
临床医学   16638篇
内科学   6250篇
皮肤病学   508篇
神经病学   2026篇
特种医学   721篇
外科学   3318篇
综合类   113篇
一般理论   3篇
预防医学   3879篇
眼科学   283篇
药学   1487篇
中国医学   198篇
肿瘤学   1433篇
  2024年   91篇
  2023年   971篇
  2022年   530篇
  2021年   1024篇
  2020年   1108篇
  2019年   839篇
  2018年   1854篇
  2017年   1867篇
  2016年   1997篇
  2015年   2144篇
  2014年   2383篇
  2013年   2832篇
  2012年   1992篇
  2011年   2456篇
  2010年   1959篇
  2009年   2023篇
  2008年   1818篇
  2007年   1674篇
  2006年   1499篇
  2005年   1315篇
  2004年   1112篇
  2003年   987篇
  2002年   845篇
  2001年   882篇
  2000年   667篇
  1999年   752篇
  1998年   693篇
  1997年   772篇
  1996年   718篇
  1995年   611篇
  1994年   460篇
  1993年   371篇
  1992年   415篇
  1991年   377篇
  1990年   329篇
  1989年   300篇
  1988年   241篇
  1987年   208篇
  1986年   219篇
  1985年   221篇
  1984年   165篇
  1983年   154篇
  1982年   116篇
  1981年   111篇
  1980年   80篇
  1979年   129篇
  1978年   87篇
  1977年   89篇
  1976年   99篇
  1972年   99篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
32.
33.
34.
35.
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   
36.
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   
37.
38.
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   
39.
40.
The most common cause of illness in infancy and childhood is acute infection of the respiratory tract. Several recent studies have reported that life-threatening respiratory disease in infancy, such as pneumonia and bronchiolitis, is directly related to the smoking habits of parents. The effects of smoking are more hazardous to youngsters because babies and young children breathe more rapidly than adults. Because of this higher breathing rate, they inhale more air—and more pollution—in comparison to their total body weight. The harmful effects of cigarette smoking on infants and children and recommendations for specific interventions to minimize or eliminate this health hazard are discussed.  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