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   1044752篇
  免费   75285篇
  国内免费   1848篇
耳鼻咽喉   14171篇
儿科学   27740篇
妇产科学   25157篇
基础医学   148249篇
口腔科学   30411篇
临床医学   91913篇
内科学   207104篇
皮肤病学   20634篇
神经病学   83290篇
特种医学   40301篇
外国民族医学   80篇
外科学   168632篇
综合类   19566篇
现状与发展   2篇
一般理论   377篇
预防医学   71791篇
眼科学   24224篇
药学   80720篇
  4篇
中国医学   2429篇
肿瘤学   65090篇
  2021年   7747篇
  2019年   8132篇
  2018年   11563篇
  2017年   8923篇
  2016年   9958篇
  2015年   11403篇
  2014年   15643篇
  2013年   22700篇
  2012年   31956篇
  2011年   33496篇
  2010年   19474篇
  2009年   18565篇
  2008年   32040篇
  2007年   33604篇
  2006年   34002篇
  2005年   32928篇
  2004年   31671篇
  2003年   30235篇
  2002年   29569篇
  2001年   55822篇
  2000年   57358篇
  1999年   48117篇
  1998年   12083篇
  1997年   10617篇
  1996年   10500篇
  1995年   9819篇
  1994年   9046篇
  1993年   8325篇
  1992年   36120篇
  1991年   34486篇
  1990年   33258篇
  1989年   32352篇
  1988年   29474篇
  1987年   28708篇
  1986年   26684篇
  1985年   25627篇
  1984年   18371篇
  1983年   15635篇
  1982年   8470篇
  1979年   16132篇
  1978年   10932篇
  1977年   9395篇
  1976年   8151篇
  1975年   8885篇
  1974年   10733篇
  1973年   10110篇
  1972年   9558篇
  1971年   9006篇
  1970年   8565篇
  1969年   8062篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Quality of Life Research - The COVID-19 pandemic might add to the stressors experienced by people living with rheumatic diseases. This study aimed to examine rheumatic patients’ functional...  相似文献   
2.
Collagens are the most abundant proteins in the extracellular matrix. They provide a framework to build organs and tissues and give structural support to make them resistant to mechanical load and forces. Several intra‐ and extracellular modifications are needed to make functional collagen molecules, intracellular post‐translational modifications of proline and lysine residues having key roles in this. In this article, we provide a review on the enzymes responsible for the proline and lysine modifications, that is collagen prolyl 4‐hydroxylases, 3‐hydroxylases and lysyl hydroxylases, and discuss their biological functions and involvement in diseases.  相似文献   
3.
4.
5.
6.
Introduction: Percutaneous renal mass biopsy has evolved over the last decade with improvements on previous pitfalls including low tissue yield, high non-diagnostic rates, and complications. As understanding of tumor biology and natural history of renal cortical neoplasms has improved, percutaneous renal mass biopsy is poised to have an expanding role in an area characterized by individualized management and refined risk stratification.

Areas covered: This review summarizes the evolution of renal mass biopsy to its current state with respect to outcomes, indications, and clinical guidelines.

Expert opinion: With improved understanding of differential biological potential of renal cortical neoplasms combined with technical improvements in diagnostic yield and accuracy, utilization of renal mass biopsy is becoming an important adjunct to patient care in a broad range of clinical scenarios, including active surveillance, thermal ablation, and use of primary systemic therapy in localized and advanced settings.  相似文献   

7.
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   
8.

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   
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