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   1528篇
  免费   438篇
  国内免费   4篇
耳鼻咽喉   19篇
儿科学   33篇
妇产科学   46篇
基础医学   11篇
口腔科学   41篇
临床医学   267篇
内科学   565篇
皮肤病学   11篇
神经病学   105篇
特种医学   25篇
外科学   111篇
综合类   1篇
预防医学   441篇
眼科学   4篇
药学   27篇
肿瘤学   263篇
  2024年   3篇
  2023年   68篇
  2022年   35篇
  2021年   68篇
  2020年   102篇
  2019年   52篇
  2018年   80篇
  2017年   82篇
  2016年   110篇
  2015年   107篇
  2014年   149篇
  2013年   206篇
  2012年   57篇
  2011年   42篇
  2010年   108篇
  2009年   166篇
  2008年   57篇
  2007年   32篇
  2006年   60篇
  2005年   19篇
  2004年   14篇
  2003年   13篇
  2002年   16篇
  2001年   34篇
  2000年   26篇
  1999年   28篇
  1998年   42篇
  1997年   29篇
  1996年   25篇
  1995年   18篇
  1994年   20篇
  1993年   9篇
  1992年   8篇
  1991年   15篇
  1990年   8篇
  1989年   6篇
  1988年   4篇
  1987年   7篇
  1986年   6篇
  1985年   5篇
  1984年   9篇
  1983年   2篇
  1982年   7篇
  1981年   4篇
  1978年   2篇
  1977年   1篇
  1975年   2篇
  1974年   3篇
  1964年   1篇
  1960年   1篇
排序方式: 共有1970条查询结果,搜索用时 15 毫秒
31.
PURPOSE: To conduct a Fehring model‐based clinical validation of the defining characteristics of the nursing diagnosis of impaired physical mobility in a sample of 250 patients. METHOD: Cross‐sectional study. FINDINGS: Three of the 11 NANDA‐International defining characteristics assessed in this study were validated: limited range of motion, limited ability to perform gross motor skills, and difficulty turning. Although discomfort was not validated due to the rarity of occurrence, there was excellent interrater agreement as to its relevance (kappa coefficient). CONCLUSIONS: In this setting, three characteristics were validated. IMPLICATIONS FOR NURSING PRACTICE: Validation studies are important for advancing evidence‐based practice.  相似文献   
32.
33.
34.
In this review, we present an overview of the role of exercise in neuromuscular disease (NMD). We demonstrate that despite the different pathologies in NMDs, exercise is beneficial, whether aerobic/endurance or strength/resistive training, and we explore whether this benefit has a similar mechanism to that of healthy subjects. We discuss further areas for study, incorporating imaginative and novel approaches to training and its assessment in NMD. We conclude by suggesting ways to improve future trials by avoiding previous methodological flaws and drawbacks in this field. Muscle Nerve, 2013  相似文献   
35.
36.
37.
38.
Objective: To assess the long-term clinical impact of a broad-based ethics education program for medical houseofficers with specific emphasis on appropriate care for patients who have do-not-resuscitate (DNR) orders. Design: Prospective, with an initial randomized phase. Setting: The medical service of a university teaching hospital. Participants: Medical houseofficers and their inpatients. Interventions: A pilot program in 1988, and a full program with a two-year curricular cycle from 1989 to 1991. Measurements and main results: The authors measured compliance with specific standards of care by reviewing charts of patients who had DNR orders at baseline (n=39, 1988), after the pilot phase (n=57, 1989), and at the end of the first curricular cycle (n=56, 1991), noticing who wrote the DNR order, whether the reasons for the order and appropriate consent were documented, and whether there was documented attention to any of 11 concurrent care concerns (CCCs), such as spiritual needs, the appropriateness of tube feedings or pressors, and adjustment of analgesic dose. The percentage of DNR orders written by houseofficers increased from 26% in 1988 to 67% in 1991 (p<0.01). The percentage of charts documenting the rationale and consent for the DNR order was consistently high. The percentage of charts documenting attention to any CCC increased from 68% in 1988 to 86% in 1991 (p<0.01). The mean number of CCCs addressed per DNR order increased from 1.34 in 1988 to 2.14 in 1991. The mean number of CCCs addressed per DNR order for patients who had AIDS increased from 0.89 in 1988 to 2.25 in 1991 (p=0.03). Conclusions: The quality of care for patients who had DNR orders, both overall and for those who had AIDS, improved over long-term observation in the setting of an ethics education program for medical houseofficers. The results suggest that ethics education may alter physician practices and improve patient care. Presented in part at the annual meeting of the Society of General Internal Medicine, Arlington, Virginia, April 29, 1993. Supported by a Charles E. Culpeper Foundation Medical Humanities Award to Dr. Sulmasy. Computational assistance was provided by CLINFO system of the National Institutes of Health (RR00035).  相似文献   
39.
Objective: To determine the perceived needs of perimenopausal women regarding the management of menopause and the resource needs of the clinicians who treat them. Setting: A large staff and group network model health maintenance organization (HMO) in New England. Participants: A random sample of 790 perimenopausal women aged 45–60 years who were members of the HMO in 1991, and a random sample of 180 clinicians in internal medicine, family practice, and obstetrics/gynecology practicing in the HMO during 1991. Method: Mailed surveys of women and clinicians were designed to assess possible needs and attitudes that could lead to the improvement of care for menopausal women. The chi-square test was used to determine differences in perceived needs and satisfaction levels among women with differences in self-reported menopausal status. The Kruskal-Wallis one-way analysis of variance and the Mann-Whitney U test were used in the clinician survey to test for differences among specialties and between genders. Results: The key findings include that: 1) most (81%) of the women wanted to see a woman clinician, 2) many (50%) were interested in a menopause support group, 3) 30% reported that their care for menopause had been fair to poor, 4) only 55% of the primary care specialists (including internal medicine and family practice) reported high confidence in their abilities to treat menopause, compared with 68% of the obstetric/gynecology clinicians, and 5) 56% of the clinicians surveyed said that support from the HMO to their practices for the treatment of menopause was fair to poor. Conclusions: There is an opportunity for better care for perimenopausal women as reported by two sources, HMO clinicians and members. To provide this care, clinicians may need explicit guidelines as well as administrative supports such as educational materials and specialty access. Since the capability for menopausal care from clinicians in obstetrics/gynecology is perceived to be higher than that from primary care clinicians, an opportunity for cross-specialty collaboration and training may exist.  相似文献   
40.
This paper presents data on the characteristics, work activities, job-related stress, work satisfaction, and career aspirations of 150 faculty and 595 housestaff physicians who regularly provide continuous primary care in 15 teaching hospital-based group practices. The faculty were young, board-certified generalists; they had been recruited from local training programs and spent the majority of their time seeing patients and supervising housestaff. Job satisfaction among faculty and housestaff was generally high. Dissatisfaction occurred most often with aspects of work over which physicians had little control. Although work-related stress was common, it was not related to job satisfaction. Compared with housestaff in traditional residency programs, housestaff enrolled in special Primary Care Training Programs reported significantly greater job satisfaction. For all housestaff, satisfaction with work in the group practice was consistently associated with decreased interest in subspecialty training. assisted in preparing this report. Received from the Department of Medicine and the School of Public Health, UCLA Center for the Health Sciences. Los Angeles. California. Supported by Grant #59082 from the Robert Wood Johnson Foundation. The views expressed herein do not necessarily represent those of the Robert Wood Johnson Foundation.  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