全文获取类型
收费全文 | 24313篇 |
免费 | 1682篇 |
国内免费 | 65篇 |
专业分类
耳鼻咽喉 | 225篇 |
儿科学 | 944篇 |
妇产科学 | 779篇 |
基础医学 | 2964篇 |
口腔科学 | 237篇 |
临床医学 | 3086篇 |
内科学 | 4671篇 |
皮肤病学 | 524篇 |
神经病学 | 2398篇 |
特种医学 | 616篇 |
外科学 | 2500篇 |
综合类 | 249篇 |
一般理论 | 39篇 |
预防医学 | 3254篇 |
眼科学 | 302篇 |
药学 | 1515篇 |
中国医学 | 21篇 |
肿瘤学 | 1736篇 |
出版年
2024年 | 32篇 |
2023年 | 287篇 |
2022年 | 367篇 |
2021年 | 809篇 |
2020年 | 489篇 |
2019年 | 825篇 |
2018年 | 857篇 |
2017年 | 636篇 |
2016年 | 664篇 |
2015年 | 696篇 |
2014年 | 961篇 |
2013年 | 1374篇 |
2012年 | 2094篇 |
2011年 | 2272篇 |
2010年 | 1210篇 |
2009年 | 1092篇 |
2008年 | 1683篇 |
2007年 | 1842篇 |
2006年 | 1668篇 |
2005年 | 1440篇 |
2004年 | 1252篇 |
2003年 | 1108篇 |
2002年 | 965篇 |
2001年 | 161篇 |
2000年 | 97篇 |
1999年 | 127篇 |
1998年 | 169篇 |
1997年 | 105篇 |
1996年 | 84篇 |
1995年 | 95篇 |
1994年 | 68篇 |
1993年 | 46篇 |
1992年 | 37篇 |
1991年 | 37篇 |
1990年 | 44篇 |
1989年 | 26篇 |
1988年 | 37篇 |
1987年 | 32篇 |
1986年 | 38篇 |
1985年 | 34篇 |
1984年 | 25篇 |
1983年 | 21篇 |
1982年 | 25篇 |
1981年 | 19篇 |
1980年 | 16篇 |
1979年 | 17篇 |
1978年 | 9篇 |
1976年 | 9篇 |
1974年 | 11篇 |
1973年 | 9篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
This article explores the motivations for offering international nursing student experiences and the reasons students choose to participate. Students should prepare by learning cultural humility rather than cultural competency, and they should be oriented to the ethical responsibility implicit in caring for those in developing countries. Programs that provide these experiences need to be developed with an eye to sustainability so the lives of those receiving care will be enriched after the students go home. 相似文献
993.
994.
Benjamin D. Dickstein Michael Suvak Brett T. Litz Amy B. Adler 《Journal of traumatic stress》2010,23(3):331-339
Unconditional and conditional trajectories of posttraumatic stress disorder (PTSD) symptomatology were examined using a sample of U.S. soldiers deployed on a NATO‐led peacekeeping mission to Kosovo. Data were collected at 4 time points, ranging from the weeks leading up to deployment to 9‐months postdeployment. Latent class growth analysis revealed 4 unique symptom trajectories: resilience, recovery, delayed, and unrealized anxiety. Variables identified as significant predictors of trajectory class included previous traumatic events, combat exposure, peacekeeping daily hassles, depression, alcohol use, aggressive behavior, stress reactivity, and military rank. Results from this study add to the literature detailing the variability in PTSD course, as well as to the literature pertaining to predictors of PTSD onset and course. 相似文献
995.
Rebecca K. Papas John E. Sidle Emmanuel S. Wamalwa Thomas O. Okumu Kendall L. Bryant Joseph L. Goulet Stephen A. Maisto R. Scott Braithwaite Amy C. Justice 《AIDS and behavior》2010,14(4):836-844
Traditional homemade brew is believed to represent the highest proportion of alcohol use in sub-Saharan Africa. In Eldoret,
Kenya, two types of brew are common: chang’aa, spirits, and busaa, maize beer. Local residents refer to the amount of brew
consumed by the amount of money spent, suggesting a culturally relevant estimation method. The purposes of this study were
to analyze ethanol content of chang’aa and busaa; and to compare two methods of alcohol estimation: use by cost, and use by
volume, the latter the current international standard. Laboratory results showed mean ethanol content was 34% (SD = 14%) for
chang’aa and 4% (SD = 1%) for busaa. Standard drink unit equivalents for chang’aa and busaa, respectively, were 2 and 1.3
(US) and 3.5 and 2.3 (Great Britain). Using a computational approach, both methods demonstrated comparable results. We conclude
that cost estimation of alcohol content is more culturally relevant and does not differ in accuracy from the international
standard. 相似文献
996.
997.
Crystal L. Park Donald Edmondson Amy Hale-Smith Thomas O. Blank 《Journal of behavioral medicine》2009,32(6):582-591
Positive health behaviors are crucial to cancer survivors’ well-being, yet little is known about the personal factors that
may facilitate positive health behaviors. The current study focuses on the association of religion/spirituality (R/S) and
health behaviors, examining links between health behaviors and religious attendance, daily spiritual experiences, and religious
struggle in a sample of 167 younger adult survivors of a variety of cancers. The extent to which positive affect (self-assurance)
and negative affect (guilt/shame) mediate these links was also investigated. Results revealed that religious attendance had
little impact on health behaviors, but that daily spiritual experiences were related to greater performance of health behaviors,
while religious struggle was related to less. Self-assurance partially mediated the effects of daily spiritual experiences,
while guilt/shame partially mediated the effects of religious struggle. The findings suggest that aspects of R/S may play
important and different roles in the lifestyle choices of cancer survivors. 相似文献
998.
999.
1000.
Amy Maxmen 《The Journal of experimental medicine》2009,206(10):2056-2057