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   4461篇
  免费   871篇
  国内免费   7篇
耳鼻咽喉   20篇
儿科学   115篇
妇产科学   705篇
基础医学   97篇
口腔科学   17篇
临床医学   2804篇
内科学   429篇
皮肤病学   19篇
神经病学   171篇
特种医学   44篇
外科学   303篇
综合类   14篇
一般理论   1篇
预防医学   296篇
眼科学   79篇
药学   50篇
肿瘤学   175篇
  2024年   14篇
  2023年   182篇
  2022年   27篇
  2021年   74篇
  2020年   128篇
  2019年   43篇
  2018年   191篇
  2017年   223篇
  2016年   286篇
  2015年   242篇
  2014年   299篇
  2013年   345篇
  2012年   129篇
  2011年   219篇
  2010年   211篇
  2009年   363篇
  2008年   201篇
  2007年   159篇
  2006年   133篇
  2005年   101篇
  2004年   127篇
  2003年   103篇
  2002年   86篇
  2001年   101篇
  2000年   51篇
  1999年   117篇
  1998年   126篇
  1997年   122篇
  1996年   113篇
  1995年   110篇
  1994年   85篇
  1993年   59篇
  1992年   64篇
  1991年   70篇
  1990年   66篇
  1989年   41篇
  1988年   37篇
  1987年   30篇
  1986年   26篇
  1985年   43篇
  1984年   23篇
  1983年   33篇
  1982年   19篇
  1981年   21篇
  1980年   17篇
  1979年   21篇
  1978年   19篇
  1977年   8篇
  1976年   13篇
  1974年   4篇
排序方式: 共有5339条查询结果,搜索用时 984 毫秒
41.
We all work in a multigenerational workforce. With extremes in generations, skills are needed to foster understanding among staff. There are many myths and realities about the age-related generations. While there are challenges in working in a multigenerational workforce, the generational differences tend to be exaggerated while the similarities are overlooked. A better understanding of these generations allows us to prevent communication breakdown and to close the communication gaps where they exist, creating a unit of harmony rather that discontent.  相似文献   
42.
43.
Background: The purpose of this study was to evaluate the tumor characteristics and treatment associated with an improved overall survival in patients with adenocarcinoma of the small intestine. Methods: The records of all patients with primary adenocarcinoma of the small bowel seen between January 1971 and December 1991 were reviewed retrospectively. The study comprised 38 patients, 22 (58%) with duodenal tumors, 11 (29%) with jejunal tumors, and five (13%) with ileal tumors. Results: Although not statistically significant, the patients with duodenal adenocarcinoma lived longer than the patients with jejunal or ileal lesions (p=0.77). The overall survival was 23% and seemed to correlate best with absence of lymph node metastases (p=0.04) and pancreaticoduodenectomy for localized duodenal tumors (p=0.04). The patient's age, duration of symptoms, disease-free interval, tumor location, type of recurrence, and histologic grade did not significantly influence survival. Conclusions: The lethality of small-intestinal adenocarcinoma appears to be related to a delay in diagnosis and treatment. When a definitive surgical procedure is performed before lymph node metastases appear, the patient's chance for long-term survival is greatly improved.Presented at the 46th Annual Cancer Symposium of The Society of Surgical Oncology, Los Angeles, California, March 18–21, 1993.  相似文献   
44.
The benefits of regular physical activity in older persons are numerous and well established. Regular physical activity in older adults is associated with an overall improvement in health, functional capacity, quality of life, and independence. Many questions arise for healthcare providers regarding an older person’s ability and motivation to be physically active. The healthcare provider has a unique opportunity to assess the older client’s incentives, preferences, and abilities for physical activities, as well as to prescribe a safe, appropriate, and enjoyable exercise plan. The exercise precription can be simple yet thorough enough to ensure benefits in an older person’s health and functional capacity.  相似文献   
45.
The role of the clinical nurse specialist (CNS) is multidimensional. Although clinical expertise is the central core of the CNS role, the aspect of leadership is pivotal to effecting change in practice. Recently, the National Association of Clinical Nurse Specialists has redefined the role by spheres of influence and core competencies. Still, clinical expertise is central. This article highlights challenges as well as rewards in the CNS role. In addition, an example of entrepreneurial endeavors for the CNS is presented.  相似文献   
46.
Susan Osborne RN  MSN  MBA   《Nurse Leader》2004,2(3):49-51
As the nursing shortage escalates, nurse managers will continue to grapple with how to retain their most valuable asset—the talented staff they are charged to lead. Survival in the current market makes both recruitment and retention efforts critical. One primary concern is an aging workforce. The American Nursing Association projects that 65% of current nurses will retire within this decade and predicts that the supply will no longer meet the demand by the year 2010.1 In fact, by 2020, the health care industry will need 1.7 million nurses—yet only 600,000 will be available.1 The key for success is retention of your current staff.  相似文献   
47.
48.
Caring for a child in a body cast is a stressful situation for most families and many families state they do not receive adequate information on how to care for their child. This paper presents a comprehensive guide on caring for a child in a body cast. It examines the physical care issues, transportation and cast care. An instrument for assessing the family’s ability to cope with caring for a child in a body cast is described, and further resources for parents and nurses are presented.  相似文献   
49.
50.
The current model for delivery of prenatal care was developed more than 100 years ago. Evidence suggests that this model is no longer appropriate for meeting national health objectives or for meeting the needs of a diverse population of pregnant women. This article provides a historical overview of prenatal care; describes the current system for care delivery and problems associated with it; and suggests strategies for transforming care into an effective, comprehensive model. JOGNN, 25, 17–23; 1996.  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