全文获取类型
收费全文 | 1538篇 |
免费 | 437篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 19篇 |
儿科学 | 33篇 |
妇产科学 | 46篇 |
基础医学 | 11篇 |
口腔科学 | 41篇 |
临床医学 | 267篇 |
内科学 | 569篇 |
皮肤病学 | 11篇 |
神经病学 | 105篇 |
特种医学 | 25篇 |
外科学 | 111篇 |
综合类 | 1篇 |
预防医学 | 442篇 |
眼科学 | 4篇 |
药学 | 27篇 |
肿瘤学 | 267篇 |
出版年
2024年 | 11篇 |
2023年 | 68篇 |
2022年 | 35篇 |
2021年 | 68篇 |
2020年 | 102篇 |
2019年 | 52篇 |
2018年 | 80篇 |
2017年 | 82篇 |
2016年 | 110篇 |
2015年 | 107篇 |
2014年 | 149篇 |
2013年 | 206篇 |
2012年 | 57篇 |
2011年 | 42篇 |
2010年 | 108篇 |
2009年 | 166篇 |
2008年 | 57篇 |
2007年 | 32篇 |
2006年 | 60篇 |
2005年 | 19篇 |
2004年 | 14篇 |
2003年 | 13篇 |
2002年 | 16篇 |
2001年 | 34篇 |
2000年 | 26篇 |
1999年 | 28篇 |
1998年 | 42篇 |
1997年 | 29篇 |
1996年 | 25篇 |
1995年 | 18篇 |
1994年 | 20篇 |
1993年 | 9篇 |
1992年 | 8篇 |
1991年 | 15篇 |
1990年 | 8篇 |
1989年 | 6篇 |
1988年 | 4篇 |
1987年 | 8篇 |
1986年 | 6篇 |
1985年 | 5篇 |
1984年 | 9篇 |
1983年 | 2篇 |
1982年 | 7篇 |
1981年 | 4篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1975年 | 2篇 |
1974年 | 3篇 |
1964年 | 1篇 |
1960年 | 1篇 |
排序方式: 共有1979条查询结果,搜索用时 15 毫秒
41.
Dr. Lawrence S. Linn PhD Robert H. Brook MD ScD Virginia A. Clark PhD Allyson Ross Davies PhD Arlene Fink PhD Jacqueline Kosecoff PhD Pam Salisbury 《Journal of general internal medicine》1986,1(2):104-108
This paper presents data on the characteristics, work activities, job-related stress, work satisfaction, and career aspirations
of 150 faculty and 595 housestaff physicians who regularly provide continuous primary care in 15 teaching hospital-based group
practices. The faculty were young, board-certified generalists; they had been recruited from local training programs and spent
the majority of their time seeing patients and supervising housestaff. Job satisfaction among faculty and housestaff was generally
high. Dissatisfaction occurred most often with aspects of work over which physicians had little control. Although work-related
stress was common, it was not related to job satisfaction. Compared with housestaff in traditional residency programs, housestaff
enrolled in special Primary Care Training Programs reported significantly greater job satisfaction. For all housestaff, satisfaction
with work in the group practice was consistently associated with decreased interest in subspecialty training.
assisted in preparing this report.
Received from the Department of Medicine and the School of Public Health, UCLA Center for the Health Sciences. Los Angeles.
California.
Supported by Grant #59082 from the Robert Wood Johnson Foundation.
The views expressed herein do not necessarily represent those of the Robert Wood Johnson Foundation. 相似文献
42.
43.
44.
Characterizing Longitudinal Changes in Physical Activity and Fear of Falling after Falls in Glaucoma
45.
46.
47.
48.
49.
50.
Marshall H. Chin MD E. Francis Cook ScD Thomas H. Lee MD MS Dr. Lee Goldman MD MPH 《Journal of general internal medicine》1994,9(12):659-665
Objective: To identify correlates of major complications and mortality in patients presenting to the emergency department with chest
pain and more than bibasilar rales.
Design: Prospective cohort study.
Setting: The emergency departments of three university and four community hospitals.
Patients: Five hundred patients more than 30 years of age presenting to the emergency departments between 1984 and 1985 with a chief
complaint of chest pain not explained by obvious trauma or chest x-ray abnormalities, and more than bibasilar rales on physical
examination.
Measurements and main results: A standard data form was used to collect the history, physical examination, vital sign, and electrocardiographic findings.
Chart review was carried out to record complications and mortality. One hundred eleven (22%) of the patients had a major complication
(ventricular fibrillation, Mobitz II heart block, complete heart block, atrioventricular dissociation, cardiogenic shock,
cardiac arrest, endotracheal intubation, intra-aortic balloon pump) or died, 160 (32%) were diagnosed as having myocardial
infarction, and 58 (12%) died. Of those patients who had major complications or who died, the first complication occurred
within six hours of hospital admission for 32% of the patients and within 24 hours for 47% of the patients. Univariate correlates
(p<0.10) of a major complication or death were entered into a stepwise logistic regression model. In the multivariate model,
ST elevation or Q waves not known to be old [adjusted odds ratio (OR) 5.8, 95% confidence interval (CI) 3.0–11.1], ST-T changes
of ischemia not known to be old (OR 2.6, 95% CI 1.5–4.6), systolic blood pressure ≤ 120 mm Hg (OR 3.2, 95% CI 1.9–5.6), and
age >70 years (OR 1.8, 95% CI 1.1–3.0) were correlates of a major complication or death.
Conclusion: For patients presenting to the emergency department with chest pain and more than bibasilar rales, major electrocardiographic
changes, systolic blood pressure ≤ 120 mm Hg, and age >70 years were correlated with a higher risk of a major complication
or death.
Supported by a grant (83102-2H) from the John A. Hartford Foundation, New York. Dr. Lee is the recipient of an Established
Investigator Award (900119) from the American Heart Association. 相似文献