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   416289篇
  免费   25750篇
  国内免费   932篇
耳鼻咽喉   5507篇
儿科学   13875篇
妇产科学   12284篇
基础医学   61090篇
口腔科学   9661篇
临床医学   36090篇
内科学   81189篇
皮肤病学   7761篇
神经病学   32750篇
特种医学   15348篇
外国民族医学   44篇
外科学   63996篇
综合类   9375篇
现状与发展   2篇
一般理论   315篇
预防医学   30382篇
眼科学   10205篇
药学   29470篇
  1篇
中国医学   1061篇
肿瘤学   22565篇
  2021年   4537篇
  2020年   2767篇
  2019年   4614篇
  2018年   6343篇
  2017年   4655篇
  2016年   5402篇
  2015年   6157篇
  2014年   8438篇
  2013年   12622篇
  2012年   17362篇
  2011年   18377篇
  2010年   10995篇
  2009年   10083篇
  2008年   16587篇
  2007年   17899篇
  2006年   17345篇
  2005年   16982篇
  2004年   16242篇
  2003年   15122篇
  2002年   14480篇
  2001年   14519篇
  2000年   14556篇
  1999年   12636篇
  1998年   4446篇
  1997年   3997篇
  1996年   3566篇
  1995年   3476篇
  1994年   3136篇
  1993年   2984篇
  1992年   8978篇
  1991年   9060篇
  1990年   8804篇
  1989年   8581篇
  1988年   7806篇
  1987年   7549篇
  1986年   7132篇
  1985年   7000篇
  1984年   5314篇
  1983年   4626篇
  1982年   3151篇
  1979年   4790篇
  1978年   3574篇
  1977年   3064篇
  1976年   2793篇
  1975年   3097篇
  1974年   3630篇
  1973年   3622篇
  1972年   3320篇
  1971年   3109篇
  1970年   2972篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Two Janus-associated kinase inhibitors (JAKi) (initially ruxolitinib and, more recently, fedratinib) have been approved as treatment options for patients who have intermediate-risk and high-risk myelofibrosis (MF), with pivotal trials demonstrating improvements in spleen volume, disease symptoms, and quality of life. At the same time, however, clinical trial experiences with JAKi agents in MF have demonstrated a high frequency of discontinuations because of adverse events or progressive disease. In addition, overall survival benefits and clinical and molecular predictors of response have not been established in this population, for which the disease burden is high and treatment options are limited. Consistently poor outcomes have been documented after JAKi discontinuation, with survival durations after ruxolitinib ranging from 11 to 16 months across several studies. To address such a high unmet therapeutic need, various non-JAKi agents are being actively explored (in combination with ruxolitinib in first-line or salvage settings and/or as monotherapy in JAKi-pretreated patients) in phase 3 clinical trials, including pelabresib (a bromodomain and extraterminal domain inhibitor), navitoclax (a B-cell lymphoma 2/B-cell lymphoma 2-xL inhibitor), parsaclisib (a phosphoinositide 3-kinase inhibitor), navtemadlin (formerly KRT-232; a murine double-minute chromosome 2 inhibitor), and imetelstat (a telomerase inhibitor). The breadth of data expected from these trials will provide insight into the ability of non-JAKi treatments to modify the natural history of MF.  相似文献   
3.
4.
5.
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   
6.

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   
7.
8.
9.
10.
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