全文获取类型
收费全文 | 2178037篇 |
免费 | 152018篇 |
国内免费 | 2866篇 |
专业分类
耳鼻咽喉 | 29669篇 |
儿科学 | 70927篇 |
妇产科学 | 59460篇 |
基础医学 | 316961篇 |
口腔科学 | 60873篇 |
临床医学 | 199195篇 |
内科学 | 417036篇 |
皮肤病学 | 48099篇 |
神经病学 | 170310篇 |
特种医学 | 82805篇 |
外国民族医学 | 461篇 |
外科学 | 317951篇 |
综合类 | 44896篇 |
现状与发展 | 3篇 |
一般理论 | 822篇 |
预防医学 | 168593篇 |
眼科学 | 49595篇 |
药学 | 166296篇 |
12篇 | |
中国医学 | 4537篇 |
肿瘤学 | 124420篇 |
出版年
2018年 | 22906篇 |
2017年 | 17743篇 |
2016年 | 19726篇 |
2015年 | 22452篇 |
2014年 | 31043篇 |
2013年 | 46519篇 |
2012年 | 63503篇 |
2011年 | 67441篇 |
2010年 | 39439篇 |
2009年 | 37546篇 |
2008年 | 63338篇 |
2007年 | 67796篇 |
2006年 | 68001篇 |
2005年 | 65761篇 |
2004年 | 63036篇 |
2003年 | 60632篇 |
2002年 | 58501篇 |
2001年 | 104726篇 |
2000年 | 107132篇 |
1999年 | 89935篇 |
1998年 | 24104篇 |
1997年 | 21604篇 |
1996年 | 21803篇 |
1995年 | 20497篇 |
1994年 | 18988篇 |
1993年 | 17824篇 |
1992年 | 69793篇 |
1991年 | 67855篇 |
1990年 | 66299篇 |
1989年 | 64114篇 |
1988年 | 58709篇 |
1987年 | 57263篇 |
1986年 | 54365篇 |
1985年 | 51296篇 |
1984年 | 38235篇 |
1983年 | 32924篇 |
1982年 | 18894篇 |
1981年 | 16824篇 |
1979年 | 35451篇 |
1978年 | 25107篇 |
1977年 | 21656篇 |
1976年 | 19541篇 |
1975年 | 21540篇 |
1974年 | 25739篇 |
1973年 | 25154篇 |
1972年 | 23926篇 |
1971年 | 22401篇 |
1970年 | 20913篇 |
1969年 | 19955篇 |
1968年 | 18232篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
71.
Patients have become increasingly well informed with higher expectations to be involved in decision-making processes regarding their care and treatment. However, few studies have examined the impact of patient involvement on health care providers’ partnership-building communication. The aim of this study was to measure and explore the self-reported effects of patient involvement on the work of physicians and nurses. A questionnaire survey was distributed among cardiology staff in 12 Swedish hospitals (N = 488, response rate 67%). The sample was comprised of registered nurses (RNs, n = 303), licensed practical nurses (LPNs, n = 132), and physicians (MDs, n = 53). Confirmatory factor analysis was used to examine seven questionnaire statements concerning implications of patient involvement for one’s clinical work. Regression analyses were used to examine factors associated with staff’s partnership-building communication. Analysis confirmed two distinct factors accounting for 57% of the total variance, representing both negative—“Hassles”—and positive—“Uplifts”—aspects of patient involvement. Regression analyses revealed that only positive aspects (i.e., uplifts) of patient involvement predicted staff behavior aimed at involving patients. Working with actively involved patients may be a source of stress, both negative and positive, for health care professionals. By developing work routines for involving patients in their care, health care workplaces may help health care professionals to buffer the negative effects, and enhance the positive effects, of that stress. 相似文献
72.
73.
74.
Frédéric Janvier Deborah Delaune Thomas Poyot Eric Valade Audrey Mérens Pierre E. Rollin Vincent Foissaud 《Emerging infectious diseases》2016,22(2):292-294
We evaluated RNA stability of Ebola virus in EDTA blood and urine samples collected from infected patients and stored in West Africa’s environmental conditions. In blood, RNA was stable for at least 18 days when initial cycle threshold values were <30, but in urine, RNA degradation occurred more quickly. 相似文献
75.
76.
77.
Jessica K. Perrotte Michael R. Baumann Raymond T. Garza Willie J. Hale 《Ethnicity & health》2020,25(1):47-64
ABSTRACTObjectives: The present study investigated the relationships of enculturation and depressive symptoms with health risk behavior engagement in Mexican-American college students and examined how these relationships differed by gender. Previous research has noted consistent gender differences in health risk behavior (e.g. alcohol use, substance use, and risky sexual behavior) among Latina/os, and emphasized the role of U.S. acculturation in this difference. Research examining the role of heritage cultural retention (i.e. enculturation), and including the added influence of mental health variables, such as depressive symptoms, is currently lacking. This study sought to address this gap.Design: A large sample (N?=?677) of Mexican-American college students from four universities (located in New York, California, Florida, and Texas) completed an online questionnaire assessing health risk behaviors and corresponding variables.Results: We found that males who endorsed more behavioral enculturation and depressive symptoms were more likely to engage in health risk behavior than all others in the sample. Contrary to previous literature, no relationship was found between behavioral enculturation and health risk behavior in females.Conclusion: The current study found behavioral enculturation to be associated with depressive symptoms, and in turn with health risk behaviors among the males in our sample. Additional research will be needed to identify the mechanism underlying the relationship between enculturation and depressive symptoms as well as between depressive symptoms and risky behavior. 相似文献
78.
79.
80.