全文获取类型
收费全文 | 219501篇 |
免费 | 4223篇 |
国内免费 | 191篇 |
专业分类
耳鼻咽喉 | 1494篇 |
儿科学 | 8090篇 |
妇产科学 | 4162篇 |
基础医学 | 22813篇 |
口腔科学 | 2115篇 |
临床医学 | 17158篇 |
内科学 | 39959篇 |
皮肤病学 | 1527篇 |
神经病学 | 21753篇 |
特种医学 | 9921篇 |
外科学 | 32615篇 |
综合类 | 2688篇 |
一般理论 | 58篇 |
预防医学 | 23454篇 |
眼科学 | 3323篇 |
药学 | 12278篇 |
中国医学 | 709篇 |
肿瘤学 | 19798篇 |
出版年
2024年 | 76篇 |
2023年 | 651篇 |
2022年 | 1087篇 |
2021年 | 2144篇 |
2020年 | 1308篇 |
2019年 | 1786篇 |
2018年 | 23610篇 |
2017年 | 18480篇 |
2016年 | 20783篇 |
2015年 | 2528篇 |
2014年 | 2775篇 |
2013年 | 3332篇 |
2012年 | 11018篇 |
2011年 | 24854篇 |
2010年 | 20685篇 |
2009年 | 13241篇 |
2008年 | 22203篇 |
2007年 | 24354篇 |
2006年 | 3222篇 |
2005年 | 4640篇 |
2004年 | 5558篇 |
2003年 | 6289篇 |
2002年 | 4142篇 |
2001年 | 450篇 |
2000年 | 544篇 |
1999年 | 367篇 |
1998年 | 541篇 |
1997年 | 463篇 |
1996年 | 298篇 |
1995年 | 276篇 |
1994年 | 219篇 |
1993年 | 180篇 |
1992年 | 115篇 |
1991年 | 153篇 |
1990年 | 186篇 |
1989年 | 140篇 |
1988年 | 105篇 |
1987年 | 83篇 |
1986年 | 67篇 |
1985年 | 67篇 |
1984年 | 71篇 |
1983年 | 68篇 |
1982年 | 61篇 |
1981年 | 45篇 |
1980年 | 70篇 |
1977年 | 28篇 |
1938年 | 60篇 |
1934年 | 30篇 |
1932年 | 56篇 |
1930年 | 47篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Eileen Dauer John Salassa Laura Iuga Jan Kasperbauer 《Otolaryngology--head and neck surgery》2006,134(5):830-835
OBJECTIVE: To illustrate the safety and efficacy of the endoscopic laser approach for cricopharyngeal myotomy (CPM) compared to the traditional transcervical approach. STUDY DESIGN AND SETTING: Retrospective chart review of 22 patients undergoing CPM from 1996 to 2003 at the Mayo Clinic, Jacksonville. RESULTS: The laser CPM technique was used in 14 patients, and an open approach in 8. The mean hospital stay and operative times were shorter for the laser group. Functional outcome analyses showed improvement in both groups. There were no major complications in the laser group, while 1 patient in the transcervical group had a pharyngocutaneous fistula. CONCLUSIONS: The laser technique is at least as effective as the transcervical approach for CPM to improve dysphagia symptoms in the properly selected patient, with a low risk of major complications. SIGNIFICANCE: In this report, we provide the reader with data to support the safety and efficacy of laser CPM. EBM rating: B-3b. 相似文献
3.
4.
5.
6.
7.
Debra L. Roter Richard M. Frankel Judith A. Hall David Sluyter 《Journal of general internal medicine》2006,21(1):28-34
Relationship-centered care reflects both knowing and feeling: the knowledge that physician and patient bring from their respective domains of expertise, and the physician’s and patient’s experience, expression, and perception of emotions during the medical encounter. These processes are conveyed and reciprocated in the care process through verbal and nonverbal communication. We suggest that the emotional context of care is especially related to nonverbal communication and that emotion-related communication skills, including sending and receiving nonverbal messages and emotional self-awareness, are critical elements of high-quality care. Although nonverbal behavior has received far less study than other care processes, the current review argues that it holds significance for the therapeutic relationship and influences important outcomes including satisfaction, adherence, and clinical outcomes of care. 相似文献
8.
9.
J. Bryan Page 《Journal of urban health》2005,82(3):iii35-iii43
Contemporary discourse contains numerous examples of use of the concept of culture by social and behavioral scientists. Simple reification, where the speaker makes culture into a thing capable of action exemplifies one usage in public discourse. Some quantitative social scientists attempt to characterize people’s cultural identities by means of a single categorical variable, which often “lumps” people into categories such as “Hispanic” or “Black” that in fact have numerous culturally bounded subcategories. Approaches that emphasize cultural process are preferable to those who attempt to categorize; more complex measures of acculturation help investigators to make convincing analyses of circumstances in which health disparities occur. Examples in which investigators make appropriate use of cultural characterizations demonstrate their utility in investigating health disparities in Haitian American women, injecting and noninjecting drug users, Hispanic youth, and adult Hispanics at risk of HIV infection. Focus on culture in the study of health disparities can identify entanglements between structural factors such as poverty and lack of education and cultural factors such as beliefs about health. Qualitative methods coupled with quantitative methods have great potential to improve investigators’ grasp of cultural nuance while capturing the distribution of qualitatively derived behaviors. 相似文献