全文获取类型
收费全文 | 47497篇 |
免费 | 2065篇 |
国内免费 | 267篇 |
专业分类
耳鼻咽喉 | 154篇 |
儿科学 | 1202篇 |
妇产科学 | 653篇 |
基础医学 | 2804篇 |
口腔科学 | 695篇 |
临床医学 | 6419篇 |
内科学 | 6044篇 |
皮肤病学 | 405篇 |
神经病学 | 1772篇 |
特种医学 | 647篇 |
外科学 | 2214篇 |
综合类 | 5304篇 |
现状与发展 | 1篇 |
一般理论 | 4篇 |
预防医学 | 16973篇 |
眼科学 | 218篇 |
药学 | 2753篇 |
26篇 | |
中国医学 | 645篇 |
肿瘤学 | 896篇 |
出版年
2024年 | 44篇 |
2023年 | 841篇 |
2022年 | 1535篇 |
2021年 | 2192篇 |
2020年 | 2119篇 |
2019年 | 2963篇 |
2018年 | 2612篇 |
2017年 | 1721篇 |
2016年 | 1243篇 |
2015年 | 1456篇 |
2014年 | 3650篇 |
2013年 | 3403篇 |
2012年 | 3226篇 |
2011年 | 3458篇 |
2010年 | 2666篇 |
2009年 | 2393篇 |
2008年 | 2287篇 |
2007年 | 2175篇 |
2006年 | 1650篇 |
2005年 | 1061篇 |
2004年 | 869篇 |
2003年 | 661篇 |
2002年 | 542篇 |
2001年 | 478篇 |
2000年 | 397篇 |
1999年 | 328篇 |
1998年 | 258篇 |
1997年 | 187篇 |
1996年 | 111篇 |
1995年 | 114篇 |
1994年 | 84篇 |
1993年 | 85篇 |
1992年 | 74篇 |
1991年 | 44篇 |
1990年 | 28篇 |
1989年 | 31篇 |
1988年 | 28篇 |
1985年 | 251篇 |
1984年 | 363篇 |
1983年 | 296篇 |
1982年 | 307篇 |
1981年 | 299篇 |
1980年 | 241篇 |
1979年 | 229篇 |
1978年 | 205篇 |
1977年 | 151篇 |
1976年 | 135篇 |
1975年 | 117篇 |
1974年 | 101篇 |
1973年 | 77篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
《Bulletin du cancer》2023,110(2):145-150
12.
《Research in social & administrative pharmacy》2022,18(9):3694-3698
In this paper, we argue that understanding and addressing the problem of poor-quality medical products requires a more interdisciplinary approach than has been evident to date. While prospective studies based on rigorous standardized methodologies are the gold standard for measuring the prevalence of poor-quality medical products and understanding their distribution nationally and internationally, they should be complemented by social science research to unpack the complex set of social, economic, and governance factors that underlie these patterns. In the following sections, we discuss specific examples of prospective quality surveys and of social science studies, highlighting the value of cross-sector partnerships in driving high-quality, policy-relevant research in this area. 相似文献
13.
14.
目的:了解2011-2017年四川省三州地区卫生人力资源配置现状,为三州地区卫生人力资源的合理配置提供参考。方法:利用千人卫生人力资源拥有量指标、基尼系数和卫生人力资源密度指数(HRDI)分析卫生人力资源配置现状及其公平性。结果:三州地区千人卫生人力资源拥有量呈增长趋势;基尼系数大多超过0.4,仅护士按人口分布的基尼系数较小;卫生人力资源密度指数较小,需要量、缺乏量及缺乏比例均较大。结论:三州地区卫生人力得到一定程度改善;但配置公平性较差,尤其按地理、经济分布很不均衡;医护人员短缺,需要重点投入。 相似文献
15.
Breanne E. Kunstler Jill L. Cook Joanne L. Kemp Paul D. O’Halloran Caroline F. Finch 《Journal of Science and Medicine in Sport》2019,22(1):2-10
Objectives
To determine: (i) the behaviour change techniques used by a sample of Australian physiotherapists to promote non-treatment physical activity; and (ii) whether those behaviour change techniques are different to the techniques used to encourage adherence to rehabilitation exercises.Design
Cross-sectional survey.Method
An online self-report survey was advertised to private practice and outpatient physiotherapists treating patients with musculoskeletal conditions. The use of 50 behaviour change techniques were measured using five-point Likert-type scale questions.Results
Four-hundred and eighty-six physiotherapists responded to the survey, with 216 surveys fully completed. Most respondents (85.1%) promoted non-treatment physical activity often or all of the time. Respondents frequently used 29 behaviour change techniques to promote non-treatment physical activity or encourage adherence to rehabilitation exercises. A similar number of behaviour change techniques was frequently used to encourage adherence to rehabilitation exercises (n = 28) and promote non-treatment physical activity (n = 26). Half of the behaviour change techniques included in the survey were frequently used for both promoting non-treatment physical activity and encouraging adherence to rehabilitation exercises (n = 25). Graded tasks was the most, and punishment was the least, frequently reported technique used to promote non-treatment physical activity and encourage adherence to rehabilitation exercises.Conclusions
Respondents reported using similar behaviour change techniques to promote non-treatment physical activity and encourage adherence to rehabilitation exercises. The variability in behaviour change technique use suggests the behaviour the physiotherapist is promoting influences their behaviour change technique choice. Including the frequently-used behaviour change techniques in non-treatment physical activity promotion interventions might improve their efficacy. 相似文献16.
17.
18.
19.
《Anais brasileiros de dermatologia》2019,94(1):42-46
BackgroundSkin cancer is a highly prevalent condition with a multifactorial etiology resulting from genetic alterations, environmental and lifestyle factors. In Brazil, among all malignant tumors, skin cancers have the highest incidences.ObjectiveTo retrospectively evaluate the incidence, prevalence and profile of basal cell carcinoma, squamous cell carcinoma and cutaneous melanoma in Campos dos Goytacazes and region.Methods:In total, 2,207 histopathological reports of a local reference hospital were analyzed between January 2013 and December 2015, of which 306 corresponded to the neoplasms studied.Results:Of the 306 reports evaluated, 232 basal cell carcinomas (75.9%), 55 squamous cell carcinomas (18%) and 19 cutaneous melanomas (6.5%) were identified. The face was the most involved anatomical site (58.8%) and women (51%) were the most affected gender. The temporal analysis revealed a decrease in the overall incidence of 3.4% from 2013 to 2014 and 5.4% from 2014 to 2015. There was a 10.1% increase in basal cell carcinomas and 38% in melanomas in this period; however, there was a decrease in the number of squamous cell carcinomas of 14.8% during the studied years.Study limitations:Some samples of cutaneous fragments had no identification of the anatomical site of origin.Conclusion:Research that generates statistical data on cutaneous tumors produces epidemiological tools useful in the identification of risk groups and allows the adoption of more targeted and efficient future prevention measures. 相似文献
20.
目的:构建基于SERVQUAL模型的医养结合型养老机构卫生服务质量评价指标体系。方法:围绕医养结合型养老机构卫生服务的概念、特性、内涵、内容等,采用文献研究法、半结构式访谈法、Delphi—AHP法等定性与定量相结合的研究方法,构建指标体系并确定指标权重。结果:构建了具有7个一级指标,27个二级指标和77个三级指标的养老机构卫生服务质量评价指标体系。指标体系三轮咨询专家权威系数Cr均高于0.84,专家综合权威性系数均高于0.83;总体专家协调系数Kendall W第一、二轮为0.309,第三轮为0.706,且均通过显著性检验;内容效度指数I-CVI介于0.90~1.00之间,S-CVI为0.94,kappa值均高于0.74;信度系数Cronbachα总体为0.972,各维度Cronbachα系数在0.792~0.921之间。评价指标体系具有较好的稳定性、可靠性和一致性。结论:本研究建立的评价指标体系有利于医养结合型养老机构全面建立贴近老年人卫生服务需求的内设医疗机构,改善机构内卫生服务质量。在对指标体系进行应用时,可转化为机构中老年人对各指标项目的感受(P)与期望(E),以两者的差值(P-E)代表机构的卫生服务质量。根据专家赋权结果,应重点加强医养结合养老机构对可靠性、有效性、经济性等指标项目的建设。 相似文献