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   3209篇
  免费   190篇
  国内免费   30篇
耳鼻咽喉   36篇
儿科学   108篇
妇产科学   46篇
基础医学   352篇
口腔科学   27篇
临床医学   186篇
内科学   1053篇
皮肤病学   72篇
神经病学   183篇
特种医学   82篇
外科学   617篇
综合类   14篇
预防医学   83篇
眼科学   32篇
药学   183篇
中国医学   2篇
肿瘤学   353篇
  2024年   5篇
  2023年   43篇
  2022年   56篇
  2021年   122篇
  2020年   51篇
  2019年   72篇
  2018年   92篇
  2017年   87篇
  2016年   108篇
  2015年   109篇
  2014年   129篇
  2013年   146篇
  2012年   235篇
  2011年   243篇
  2010年   145篇
  2009年   132篇
  2008年   198篇
  2007年   185篇
  2006年   175篇
  2005年   191篇
  2004年   164篇
  2003年   141篇
  2002年   145篇
  2001年   49篇
  2000年   44篇
  1999年   50篇
  1998年   32篇
  1997年   23篇
  1996年   19篇
  1995年   21篇
  1994年   25篇
  1993年   14篇
  1992年   20篇
  1991年   18篇
  1990年   20篇
  1989年   16篇
  1988年   15篇
  1987年   15篇
  1986年   10篇
  1985年   9篇
  1984年   13篇
  1982年   2篇
  1981年   6篇
  1980年   3篇
  1979年   4篇
  1978年   4篇
  1977年   4篇
  1974年   4篇
  1973年   4篇
  1968年   3篇
排序方式: 共有3429条查询结果,搜索用时 15 毫秒
71.
72.
73.
74.

Background

Although the goodness-of-fit hypothesis (GOFH) is one of the most important theories in research about the effect of coping on distress related to different stressful situations, there has been a mixed response to it in the literature.

Purpose

The present study examined whether the effect of the sociocultural context in stressful situations is consistent with the GOFH. The study investigated sociocultural beliefs about the appropriateness of different coping strategies in a given group as the sociocultural context.

Method

Japanese employees (N?=?1,156) of an information technology company reported their appraisal of stressors’ controllability, the coping strategies they employed for the stressors, their sociocultural beliefs about coping strategies, and their psychological distress in response to the stressors.

Results

The GOFH was supported only for problem-focused coping with task stressors and not for interpersonal stressors. The applicability of the GOFH differed by sociocultural beliefs about coping, namely an appraisal of what coworkers might think about the appropriateness of the coping method.

Conclusion

These results suggest that it is important for managing stress to consider the sociocultural context as well as the GOFH.  相似文献   
75.
76.
Sleep and Breathing - Obesity increases the severity of asthma, and patients with severe asthma are often complicated with obstructive sleep apnea syndrome (OSAS), a concomitant disease of obesity....  相似文献   
77.
78.
79.
80.
The aim of this study was to prospectively measure liver stiffness with real-time tissue elastography in patients with nonalcoholic fatty liver diseases (NAFLD) and to compare the result with the clinical assessment of fibrosis using histological stage. One hundred and eighty-one prospectively enrolled patients underwent real-time tissue elastography, with the first 106 being analyzed as the training set and the remaining 75 being evaluated as the validation set. Hepatic and splenic elastic ratios were calculated and compared with stage of histological fibrosis. Portal hypertension (PH) was assessed. Real-time tissue elastography cut-off values by stage in the training set were 2.47 for F1, 2.67 for F2, 3.02 for F3, and 3.36 for F4. Using these cut-off values, the diagnostic accuracy of hepatic fibrosis in the validation set was 82.6%-96.0% in all stages. Only portal fibrosis correlated with the hepatic elastic ratio by multivariate analysis. The area under the receiver operating characteristic curve of elastic ratio better correlated than serum fibrosis markers in both early and advanced fibrosis stages. Patients with PH, defined by splenic elasticity, had early fibrosis. Patients with severe PH were found only in the group with cirrhosis. Conclusion: Real-time tissue elastography is useful in evaluating hepatic fibrosis and PH in patients with NAFLD. (HEPATOLOGY 2012).  相似文献   
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