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   1972498篇
  免费   141451篇
  国内免费   3076篇
耳鼻咽喉   26720篇
儿科学   65523篇
妇产科学   53055篇
基础医学   295883篇
口腔科学   55729篇
临床医学   179626篇
内科学   379130篇
皮肤病学   44523篇
神经病学   154669篇
特种医学   75034篇
外国民族医学   356篇
外科学   287385篇
综合类   39458篇
现状与发展   4篇
一般理论   727篇
预防医学   153408篇
眼科学   45686篇
药学   146426篇
  9篇
中国医学   4461篇
肿瘤学   109213篇
  2019年   15319篇
  2018年   22121篇
  2017年   17104篇
  2016年   19401篇
  2015年   22152篇
  2014年   29442篇
  2013年   44522篇
  2012年   60821篇
  2011年   63656篇
  2010年   37165篇
  2009年   34965篇
  2008年   60246篇
  2007年   64804篇
  2006年   64773篇
  2005年   63113篇
  2004年   60794篇
  2003年   58413篇
  2002年   56712篇
  2001年   88838篇
  2000年   90501篇
  1999年   75991篇
  1998年   21145篇
  1997年   18651篇
  1996年   18940篇
  1995年   17891篇
  1994年   16631篇
  1993年   15489篇
  1992年   58400篇
  1991年   57761篇
  1990年   55974篇
  1989年   54715篇
  1988年   50394篇
  1987年   49204篇
  1986年   46894篇
  1985年   44206篇
  1984年   33455篇
  1983年   28806篇
  1982年   16766篇
  1979年   31462篇
  1978年   22806篇
  1977年   19134篇
  1976年   17970篇
  1975年   19737篇
  1974年   23498篇
  1973年   23012篇
  1972年   21715篇
  1971年   20373篇
  1970年   19345篇
  1969年   18080篇
  1968年   16829篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
21.
Cancer Causes & Control - Congenital malformations are strong risk factors for childhood cancer. Our objective was to determine whether cancer survival differs by birth defect status among...  相似文献   
22.
Journal of Neuro-Oncology - Adjuvant radiation is often used in patients with low grade gliomas with high-risk characteristics with a recommended dose of 45–54 Gy. We used the...  相似文献   
23.
ABSTRACT

Objective: Dry eye is reported to be associated with several neurological diseases. The aim of this study is to evaluate the patients with hemiplegia after stroke for dry eye and compare their results with a control group.

Materials and methods: Forty-five patients with hemiplegia and 45 individuals as the control group were included in the study. Tear function tests (Schirmer and tear breakup time) and a dry eye questionnaire for dry eye symptoms (ocular surface disease index) were performed and the results of the two groups were compared.

Results: Schirmer test results were significantly lower in the post-stroke hemiplegia group compared to the control group (11.3 ± 8.2 mm and 20.6 ± 11.6 mm, respectively, p < .001). Tear breakup time results were significantly lower in the post-stroke hemiplegia group compared to the control group (7.9 ± 3.1 s and 12.1 ± 4.3 s, respectively, p < .001). Ocular surface disease index scores were not significantly different between hemiplegia and control groups (21.6 ± 20.0 and 19.8 ± 13.9, respectively, p = .635). Schirmer scores lower than 10 mm (60% and 30%, p < .001) and tear breakup time results lower than 10 s (65.6% and 28.9%, p < .001) were also higher in the hemiplegia group compared to control group.

Conclusion: We found lower Schirmer test and tear breakup time results and similar OSDI scores in hemiplegia patients compared to controls. Hemiplegia patients may have dry eye without typical symptoms. This should be taken into consideration in the follow-up and rehabilitation of post-stroke hemiplegia patients.  相似文献   
24.
25.
26.
27.
28.

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   
29.
30.
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