全文获取类型
收费全文 | 1417篇 |
免费 | 58篇 |
专业分类
1475篇 |
出版年
2022年 | 9篇 |
2021年 | 11篇 |
2020年 | 35篇 |
2019年 | 30篇 |
2018年 | 31篇 |
2017年 | 53篇 |
2016年 | 41篇 |
2015年 | 30篇 |
2014年 | 34篇 |
2013年 | 182篇 |
2012年 | 71篇 |
2011年 | 73篇 |
2010年 | 47篇 |
2009年 | 36篇 |
2008年 | 53篇 |
2007年 | 44篇 |
2006年 | 59篇 |
2005年 | 55篇 |
2004年 | 43篇 |
2003年 | 53篇 |
2002年 | 42篇 |
2001年 | 23篇 |
2000年 | 36篇 |
1999年 | 26篇 |
1998年 | 25篇 |
1997年 | 20篇 |
1996年 | 17篇 |
1995年 | 18篇 |
1994年 | 20篇 |
1993年 | 18篇 |
1992年 | 12篇 |
1991年 | 26篇 |
1990年 | 12篇 |
1989年 | 18篇 |
1988年 | 9篇 |
1987年 | 9篇 |
1986年 | 8篇 |
1985年 | 9篇 |
1984年 | 12篇 |
1983年 | 16篇 |
1982年 | 16篇 |
1981年 | 11篇 |
1980年 | 8篇 |
1979年 | 14篇 |
1978年 | 11篇 |
1977年 | 8篇 |
1976年 | 12篇 |
1975年 | 7篇 |
1974年 | 3篇 |
1969年 | 3篇 |
排序方式: 共有1475条查询结果,搜索用时 15 毫秒
161.
Diane L. Baker Timothy Eash Jane L. Schuette Wendy R. Uhlmann 《Journal of genetic counseling》2002,11(5):399-418
Patient letters provide a permanent record of the genetic counseling that was provided and are unique in medical care; rarely do other health care providers send summaries written specifically to their patients and families. We surveyed genetic counseling training program directors and found that while the acquisition of patient letter-writing skills was considered important, there were no specific guidelines made available to students. To develop letter-writing guidelines, we evaluated patient letters, reviewed references on professional correspondence, surveyed the medical literature, and worked with a writing consultant. The guidelines we subsequently developed and present here include a format for writing patient letters, suggestions on presenting medical information in understandable terms, and wording considerations. These patient letter-writing guidelines are intended to serve as a guide for teaching students this important skill and as a resource for practicing health care professionals. 相似文献
162.
Nonadherence in the management of chronic illness is a pervasive clinical challenge. Although researchers have identified multiple correlates of adherence, the field remains relatively atheoretical. The authors propose a cognitive-affective model of medication adherence based on social support theory and research. Structural equation modeling of longitudinal survey data from 136 mainly African American and Puerto Rican men and women with HIV/AIDS provided preliminary support for a modified model. Specifically, baseline data indicated social support was associated with less negative affect and greater spirituality, which, in turn, were associated with self-efficacy to adhere. Self-efficacy to adhere at baseline predicted self-reported adherence at 3 months, which predicted chart-extracted viral load at 6 months. The findings have relevance for theory building, intervention development, and clinical practice. 相似文献
163.
164.
165.
This study of 230 predominantly poor Hispanic and African American women aged 25 to 61 years living with HIV/AIDS in New York City revealed high levels of both sexual (39%) and physical (44%) trauma before the age of 16. Both types of early trauma were correlated with later trauma, and all forms of trauma were significantly associated with current perceived health. In multivariate analyses controlling for relevant covariates, the Powerful Others and Internal Control subscales of the Multidimensional Health Locus of Control Scales (K. A. Wallston, B. S. Wallston, & R. DeVellis, 1978) acted as independent predictors of perceived health rather than (as hypothesized) mediators of the association between trauma and perceived health. Findings underscore the importance of addressing trauma and perceptions of control over one's physical health in the provision of health services to HIV-positive women. 相似文献
166.
Jane W. Torrey 《Psychology of women quarterly》1979,4(2):281-293
The women's movement is often described as „white middle-class” despite the fact that black women not only are more oppressed than whites, but are more favorable to the goals of the women's movement. Black women, especially those identified with the black rights movement, fear that feminism will split their ranks and divert public attention. Black women's problems also differ from those of whites in other ways, mostly related to the fact that their economic position is much worse than that of either white women or black men. Moreover, blacks hesitate to join organizations they perceive as white dominated. It is argued that both black and women's rights movements need each others' support and that black women cannot achieve equality unless both movements succeed 相似文献
167.
168.
169.
Jane Akister 《Journal of Family Therapy》1998,20(4):353-366
Attachment theory offers a way of thinking about the dyadic relationships within the family system. Family systems theory and therapy can contribute to attachment theory, as dyadic relationships do not exist in isolation but within the context of other relationships. Research at the interface between systemic practice and attachment theory is reviewed with examination of the central role they may play together in the developing understanding of family relationships. 相似文献
170.
Jane S. Blake-Mortimer Anthony H. Winefield Ainsley H. Chalmers 《International journal of stress management》1998,5(1):57-75
Previously we showed that stress and depression could result in a 50% lowering of lymphocytic 5-ectonucleotidase (NT) which could be resolved by a diet high in antioxidants. This study suggested that high levels of free radicals mediated by stress/depression may be involved in lowering NT activities. The aim of the present study was to assess whether oxygen radicals could directly affect NT and whether excess free radicals generated in stress/depression may affect tissue ascorbate stores. Exam-stressed students and depressed patients were compared respectively to these students at low stress and depressed patients on high antioxidant intakes. In this study, NT correlated positively with tissue ascorbate stores. A range of antioxidants were tested as possible inhibitors of oxy radical interaction with NT using nitroblue tetrazolium reduction to for-mazan with superoxide anion. At physiological plasma concentrations, ascorbate inhibited this reduction but dehydroascorbate, tocopherol, retinol, selenium, urate, and reduced glutathione were ineffective. Superoxide anion directly reduced lymphocytic NT activity and this effect was reversed by either 100 molar ascorbate in vitro or a high antioxidant intake in vivo. In conclusion, the low NT activities and ascorbate stores found in stressed/depressed people appear to be mediated by higher levels of free radicals reported in these subjects. These conclusions are consistent with published reports of (1) normal NT levels in melancholic patients on high antioxidant diets; (2) heightened inflammatory reponses during stress/depression; (3) low serum levels of zinc in depressed patients. 相似文献