全文获取类型
收费全文 | 8891篇 |
免费 | 578篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 54篇 |
儿科学 | 418篇 |
妇产科学 | 278篇 |
基础医学 | 892篇 |
口腔科学 | 39篇 |
临床医学 | 1533篇 |
内科学 | 1314篇 |
皮肤病学 | 158篇 |
神经病学 | 839篇 |
特种医学 | 200篇 |
外科学 | 826篇 |
综合类 | 70篇 |
一般理论 | 8篇 |
预防医学 | 1458篇 |
眼科学 | 79篇 |
药学 | 460篇 |
中国医学 | 3篇 |
肿瘤学 | 847篇 |
出版年
2024年 | 14篇 |
2023年 | 89篇 |
2022年 | 85篇 |
2021年 | 184篇 |
2020年 | 128篇 |
2019年 | 248篇 |
2018年 | 220篇 |
2017年 | 184篇 |
2016年 | 193篇 |
2015年 | 215篇 |
2014年 | 311篇 |
2013年 | 466篇 |
2012年 | 686篇 |
2011年 | 761篇 |
2010年 | 406篇 |
2009年 | 342篇 |
2008年 | 648篇 |
2007年 | 683篇 |
2006年 | 610篇 |
2005年 | 614篇 |
2004年 | 572篇 |
2003年 | 514篇 |
2002年 | 477篇 |
2001年 | 52篇 |
2000年 | 47篇 |
1999年 | 47篇 |
1998年 | 104篇 |
1997年 | 73篇 |
1996年 | 65篇 |
1995年 | 68篇 |
1994年 | 38篇 |
1993年 | 46篇 |
1992年 | 31篇 |
1991年 | 28篇 |
1990年 | 22篇 |
1989年 | 16篇 |
1988年 | 13篇 |
1987年 | 14篇 |
1986年 | 20篇 |
1985年 | 17篇 |
1984年 | 16篇 |
1983年 | 11篇 |
1982年 | 14篇 |
1981年 | 15篇 |
1980年 | 14篇 |
1979年 | 4篇 |
1978年 | 5篇 |
1977年 | 9篇 |
1973年 | 5篇 |
1972年 | 5篇 |
排序方式: 共有9476条查询结果,搜索用时 0 毫秒
61.
62.
Matt A. Burchill Beth A. Tamburini Nathan D. Pennock Jason T. White Jonathan S. Kurche Ross M. Kedl 《Vaccine》2013
The objective of modern vaccine development is the safe generation of protective long-term immune memory, both prophylactic and therapeutic. Live attenuated vaccines generate potent cellular and humoral immunity 0005, 0010 and 0015, but numerous problems exist with these vaccines, ranging from production and storage issues to adverse reactions and reversion to virulence. Subunit vaccines are safer, more stable, and more amenable to mass production. However the protection they produce is frequently inferior to live attenuated vaccines and is typically confined to humoral, and not cellular immunity. Unfortunately, there are presently no subunit vaccines available clinically that are effective at eliciting cellular responses let alone cellular memory [4]. This article will provide and overview of areas of investigation that we see as important for the development of vaccines with the capacity to induce robust and enduring cellular immune responses. 相似文献
63.
Beth Doerr Kristina L. Wade Katherine K. Stephenson Stewart B. Reed 《Ecology of food and nutrition》2013,52(3):199-211
Leaves of the tropical tree Moringa oleifera are widely promoted in areas of chronic malnutrition as nutritional supplements for weaning infants and nursing mothers. Adoption, in these circumstances may hinge upon taste, which can vary greatly amongst cultivars. It is widely assumed that this taste variation is primarily germplasm-dependent, and results from the breakdown of glucosinolates to isothiocyanates. Leaves of 30 accessions, grown at a single field plot, were sampled 3 times over the course of a year. Taste, assessed in a masked protocol, was not related to glucosinolate content of the leaves. 相似文献
64.
Beth P. Velde 《Occupational Therapy in Health Care》2013,27(1):89-90
No abstract available for this article. 相似文献
65.
Clare Collins RN PhD Linda Beth Tiedje RN PhD Manfred Stommel PhD 《Health care for women international》2013,34(1):77-85
In this quasi‐experimental pilot study, women who were returning to work within 6 months after the birth of a first baby were assigned to participate in a control group (n = 13) or a six‐session small group intervention (n = 18). The content of the group intervention was developed based on a stress and coping framework (Lazarus & Folkman, 1984).”; The experimental and control groups were surveyed at 2 months after their return to employment and on their baby's first birthday on measures of well‐being in marriage, work, and parenting. Repeated measures analysis of covariance was used to examine differences over time between the experimental and control group with length of maternity leave and number of hours worked as covariates. Participants in the intervention reported increasing levels of marital satisfaction over time, whereas the control group experienced a decline in marital satisfaction over time (p = .04). Implications for practice and research are presented. 相似文献
66.
67.
68.
69.
Brenda K. Binder Beth Mastel-Smith Gayle Hersch Lene Symes Ann Malecha Judith McFarlane 《Issues in mental health nursing》2013,34(5):288-294
The purpose of this study was to elicit the participants' perspective of a Therapeutic Life Review intervention program delivered by a home care worker. Following the intervention by the home care worker, 13 of the 14 older women receiving home care services were interviewed to examine their experiences. Qualitative data analysis revealed five themes: (1) Someone was there to listen to my story, (2) It was a special time, (3) A valued interaction with the home care worker developed, (4) Remembering was meaningful and pleasurable, and (5) Integration with one's lived experiences was healing. Three case scenarios illustrate the lives of these older women. 相似文献
70.