全文获取类型
收费全文 | 124861篇 |
免费 | 8507篇 |
国内免费 | 544篇 |
专业分类
耳鼻咽喉 | 1338篇 |
儿科学 | 3730篇 |
妇产科学 | 2123篇 |
基础医学 | 16777篇 |
口腔科学 | 2227篇 |
临床医学 | 12357篇 |
内科学 | 26417篇 |
皮肤病学 | 1520篇 |
神经病学 | 12147篇 |
特种医学 | 3868篇 |
外国民族医学 | 1篇 |
外科学 | 17907篇 |
综合类 | 1693篇 |
现状与发展 | 1篇 |
一般理论 | 157篇 |
预防医学 | 10824篇 |
眼科学 | 3376篇 |
药学 | 8868篇 |
1篇 | |
中国医学 | 280篇 |
肿瘤学 | 8300篇 |
出版年
2023年 | 570篇 |
2022年 | 882篇 |
2021年 | 2424篇 |
2020年 | 1463篇 |
2019年 | 2440篇 |
2018年 | 2860篇 |
2017年 | 2084篇 |
2016年 | 2414篇 |
2015年 | 2804篇 |
2014年 | 4021篇 |
2013年 | 5645篇 |
2012年 | 8606篇 |
2011年 | 9226篇 |
2010年 | 5042篇 |
2009年 | 4702篇 |
2008年 | 8117篇 |
2007年 | 8640篇 |
2006年 | 8198篇 |
2005年 | 8257篇 |
2004年 | 7761篇 |
2003年 | 7145篇 |
2002年 | 6900篇 |
2001年 | 1252篇 |
2000年 | 942篇 |
1999年 | 1270篇 |
1998年 | 1478篇 |
1997年 | 1244篇 |
1996年 | 971篇 |
1995年 | 966篇 |
1994年 | 821篇 |
1993年 | 800篇 |
1992年 | 696篇 |
1991年 | 632篇 |
1990年 | 567篇 |
1989年 | 524篇 |
1988年 | 524篇 |
1987年 | 506篇 |
1986年 | 430篇 |
1985年 | 525篇 |
1984年 | 578篇 |
1983年 | 535篇 |
1982年 | 707篇 |
1981年 | 614篇 |
1980年 | 542篇 |
1979年 | 381篇 |
1978年 | 349篇 |
1977年 | 360篇 |
1976年 | 299篇 |
1975年 | 277篇 |
1974年 | 286篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
Kuo-yi Jade Chang MHealthEc MHM BSc Lisa Lorraine Dillon MSpecEd BPsych Lil Deverell COMS PhD MEd GradDipO&M BEd Mei Ying Boon PhD BOptom FAAO Lisa Keay PhD MPH BOptom 《Clinical & experimental optometry》2020,103(4):434-448
Despite orientation and mobility (O&M) being a significant factor determining quality of life of people with low vision or blindness, there are no gold standard measures or agreement on how to measure O&M performance. In the first part of this systematic review, an inventory of O&M outcome measures used by recent studies to assess the performance of orientation and/or mobility of adults with vision impairment (low vision and blindness) is presented. A wide variety of O&M outcome measures have been implemented in different fields of study, such as epidemiologic research and interventional studies evaluating training, assistive technology, vision rehabilitation and vision restoration. The most frequent aspect of outcome measures is efficiency such as time, distance, speed and percentage of preferred walking speed, followed by obstacle contacts and avoidance, and dis/orientation and veering. Other less commonly used aspects are target identification, safety and social interaction and self-reported outcome measures. Some studies employ sophisticated equipment to capture and analyse O&M performance in a laboratory setting, while others carry out their assessment in real-world indoor or outdoor environments. In the second part of this review, the appropriateness of implementing the identified outcome measures to assess O&M performance in clinical and functional O&M practice is evaluated. Nearly a half of these outcome measures meet all four criteria of face validity (either clinical or functional), responsiveness, reliability and feasibility and have the potential to be implemented in clinical or functional O&M practice. The findings of this review confirm the complicated and dynamic nature of O&M. Multiple measures are required in any evaluation of O&M performance to facilitate holistic assessment of O&M abilities and limitations of each individual. 相似文献
4.
Evelyne Harkemanne Jean‐Louis Dargent Pierre‐Paul Roquet‐Gravy Audrey Bulinckx 《Pediatric dermatology》2019,36(3):365-367
We report a case of benign lymphoplasmacytic plaque (LPP) in a child. These asymptomatic erythematous papulonodular lesions are an emerging clinicopathological entity. Herein, we describe a previously unreported site for LPP lesions, namely, the volar wrist and the distal ipsilateral palm. 相似文献
5.
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6.
7.
8.
9.