全文获取类型
收费全文 | 27026篇 |
免费 | 3903篇 |
国内免费 | 213篇 |
专业分类
耳鼻咽喉 | 591篇 |
儿科学 | 698篇 |
妇产科学 | 545篇 |
基础医学 | 2471篇 |
口腔科学 | 406篇 |
临床医学 | 4857篇 |
内科学 | 6212篇 |
皮肤病学 | 539篇 |
神经病学 | 1985篇 |
特种医学 | 978篇 |
外科学 | 4072篇 |
综合类 | 625篇 |
现状与发展 | 2篇 |
一般理论 | 9篇 |
预防医学 | 2983篇 |
眼科学 | 723篇 |
药学 | 1288篇 |
1篇 | |
中国医学 | 150篇 |
肿瘤学 | 2007篇 |
出版年
2024年 | 85篇 |
2023年 | 494篇 |
2022年 | 248篇 |
2021年 | 532篇 |
2020年 | 667篇 |
2019年 | 517篇 |
2018年 | 913篇 |
2017年 | 893篇 |
2016年 | 911篇 |
2015年 | 1034篇 |
2014年 | 1203篇 |
2013年 | 1785篇 |
2012年 | 1441篇 |
2011年 | 1359篇 |
2010年 | 1145篇 |
2009年 | 1247篇 |
2008年 | 1362篇 |
2007年 | 1359篇 |
2006年 | 1423篇 |
2005年 | 1275篇 |
2004年 | 1206篇 |
2003年 | 1122篇 |
2002年 | 1036篇 |
2001年 | 476篇 |
2000年 | 397篇 |
1999年 | 396篇 |
1998年 | 469篇 |
1997年 | 469篇 |
1996年 | 453篇 |
1995年 | 435篇 |
1994年 | 324篇 |
1993年 | 238篇 |
1992年 | 290篇 |
1991年 | 248篇 |
1990年 | 242篇 |
1989年 | 248篇 |
1988年 | 240篇 |
1987年 | 217篇 |
1986年 | 191篇 |
1985年 | 175篇 |
1984年 | 175篇 |
1983年 | 180篇 |
1982年 | 165篇 |
1981年 | 165篇 |
1980年 | 135篇 |
1979年 | 108篇 |
1978年 | 110篇 |
1977年 | 123篇 |
1976年 | 96篇 |
1974年 | 71篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
Promoting autonomy and independence for older people within nursing practice: a literature review 总被引:1,自引:0,他引:1
Sue Davies Bsc Msc RGN RHV Sara Laker BA RGN Lorraine Ellis BA MSc RGN RNT 《Journal of advanced nursing》1997,26(2):408-417
The principles of promoting autonomy and independence underpin many approaches to improving the quality of nursing care for older people in whatever setting, and are in line with wider developments in health care such as the Patient's Charter. However, these concepts require careful definition if nursing practices which might promote autonomy and independence are to be identified. Although the generalizability of the research-based literature in this field is limited by a focus upon older people in continuing-care settings, a review of the literature found a number of indicators associated with attempts to promote patient autonomy and independence. These were grouped into the following categories: systems of care delivery which promote comprehensive individualized assessment and multidisciplinary care planning; attempts to encourage patients/clients to participate in decisions about their care; patterns of communication which avoid exerting power and control over patients/clients and attempts to modify the environment to promote independence and minimize risk. It is suggested that the review identifies a number of principles for nursing practice which can be applied in a range of care settings in order to promote the autonomy and independence of older people. 相似文献
83.
84.
85.
John McMahon RMN BA Scottish Home Health Department Nursing Research Fellow Staff Nurse Barry T Jones BSc PhD Senior Lecturer 《Journal of advanced nursing》1992,17(2):173-186
Despite being constantly cited as a critical intervening variable in the recovery from alcohol problems, there is a paucity of literature on client motivation. This paper reviews the current literature which impacts on motivation and its importance in treatment and develops in a stepwise manner the revised expectancy/motivation hypothesis, tentatively explaining both motivation and denial as a natural process in behavioural change. Because of the revised expectancy/motivation hypothesis' distinctly defined stages which closely relate to the process of nursing and the qualitative and quantitative measurement it entails which the nursing process demands, it offers a particularly appropriate model for treatment within nurse practice. 相似文献
86.
Raymond Dalgleish Timothy Francis Matthew J Beckman 《Journal of orthopaedic research》2006,24(7):1571-2; author reply 1572-4
87.
88.
R I Colebunders A Greenberg P Nguyen-Dinh H Francis N Kabote L Izaley F Davachi T C Quinn P Piot 《AIDS (London, England)》1987,1(3):151-153
In July 1986, a provisional clinical case definition of AIDS in children, developed by the World Health Organization (WHO) for surveillance purposes in Africa, was tested on 159 patients hospitalized in the Department of Pediatrics at Mama Yemo Hospital, Kinshasa, Zaire. Twenty-one (13%) of these children were seropositive for HIV. In this population, the clinical case definition of pediatric AIDS was found to be fairly specific (87%) but lacked sensitivity (35%). The positive predictive value for HIV seropositivity was 25%. This study suggests that it is more difficult to define AIDS clinically in children than in adults and that the utility of the proposed WHO clinical case definition for pediatric AIDS for surveillance of children's AIDS in Africa is limited. 相似文献
89.
The xanthine oxidase catalysed release of superoxide free radicals (O2-) from endogenous hypoxanthine was determined in homogenates of synovium obtained from three groups of patients, those undergoing primary or revision total hip replacement (THR) for osteoarthritis and those undergoing arthroscopy of the knee for semilunar disc injuries. The concentrations of hypoxanthine in homogenates obtained during THR were found to be significantly higher than those in the group with semilunar disc injuries. The results suggest that there is a greater predisposition to free radical release and tissue damage in osteoarthritis. 相似文献
90.
Kinnison ML; Perler BA; Kaufman SL; Mitchell SE; Kadir S; Williams GM; White RI Jr 《Radiology》1986,160(3):727-730
In situ saphenous vein grafts are being used with increasing frequency for bypass procedures involving the femoral and popliteal arteries. Complications of these procedures include anastomotic stenoses and persistent arteriovenous fistulae that may result in failure of the graft. Balloon angioplasty and embolotherapy with detachable balloons were employed successfully in three or four recent cases of patients with complications from in situ grafts. Tailored angiography is essential for evaluating in situ grafts, and interventional techniques are extremely useful for managing complications. 相似文献