全文获取类型
收费全文 | 55737篇 |
免费 | 7628篇 |
国内免费 | 233篇 |
专业分类
耳鼻咽喉 | 343篇 |
儿科学 | 1478篇 |
妇产科学 | 2338篇 |
基础医学 | 4759篇 |
口腔科学 | 765篇 |
临床医学 | 18726篇 |
内科学 | 10432篇 |
皮肤病学 | 620篇 |
神经病学 | 4457篇 |
特种医学 | 1325篇 |
外国民族医学 | 1篇 |
外科学 | 6256篇 |
综合类 | 563篇 |
一般理论 | 30篇 |
预防医学 | 4735篇 |
眼科学 | 759篇 |
药学 | 2681篇 |
1篇 | |
中国医学 | 55篇 |
肿瘤学 | 3274篇 |
出版年
2023年 | 974篇 |
2022年 | 359篇 |
2021年 | 931篇 |
2020年 | 1082篇 |
2019年 | 901篇 |
2018年 | 1865篇 |
2017年 | 1943篇 |
2016年 | 2066篇 |
2015年 | 2283篇 |
2014年 | 2655篇 |
2013年 | 3357篇 |
2012年 | 2864篇 |
2011年 | 3408篇 |
2010年 | 2542篇 |
2009年 | 2708篇 |
2008年 | 2948篇 |
2007年 | 3139篇 |
2006年 | 3028篇 |
2005年 | 3013篇 |
2004年 | 2713篇 |
2003年 | 2547篇 |
2002年 | 2339篇 |
2001年 | 819篇 |
2000年 | 528篇 |
1999年 | 811篇 |
1998年 | 1027篇 |
1997年 | 1022篇 |
1996年 | 968篇 |
1995年 | 836篇 |
1994年 | 650篇 |
1993年 | 600篇 |
1992年 | 474篇 |
1991年 | 458篇 |
1990年 | 419篇 |
1989年 | 342篇 |
1988年 | 311篇 |
1987年 | 281篇 |
1986年 | 237篇 |
1985年 | 318篇 |
1984年 | 348篇 |
1983年 | 302篇 |
1982年 | 323篇 |
1981年 | 337篇 |
1980年 | 290篇 |
1979年 | 192篇 |
1978年 | 189篇 |
1977年 | 190篇 |
1976年 | 179篇 |
1974年 | 123篇 |
1972年 | 150篇 |
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
21.
Factors predicting the development of pressure ulcers in an at‐risk population who receive standardized preventive care: secondary analyses of a multicentre randomised controlled trial
下载免费PDF全文
![点击此处可从《Journal of advanced nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
22.
Michael L. Goodman Miriam S. Mutambudzi Stanley Gitari Philip H. Keiser Sarah E. Seidel 《Vulnerable children and youth studies》2016,11(4):366-378
There are an estimated 56 million orphans and vulnerable children across sub-Saharan Africa. Communities typically care for orphan children through informal caring arrangements – either within or outside of kinship networks. Within Kenya, an estimated 250,000 children live on the streets. There is less research related to fostering attitudes of this special population than orphans and vulnerable children generally. Important research over the past decade has illuminated multiple ways in which children are made more vulnerable because of HIV, including parental death and street-migration from HIV-affected households. As HIV transitions from a terminal illness to a chronic, manageable one, research is also required to establish how parents living with HIV can be an asset to children. In this study, we assess whether mothers living with HIV were very willing to foster biologically-related children, and street-involved children, how these fostering attitudes differed from mothers not living with HIV, and whether differences in fostering attitudes by reported HIV status were mediated by social support, family functioning and general self-rated health. Approximately 40% of mothers living with HIV were very willing to provide long-term foster care to biologically-related or street-involved children. This was less than the percentage of mothers not living with HIV, who were very willing to foster biologically-related children (61%) or street-involved children (58%). Significant portions of these differences were explained by social support, family functioning and general self-rated health. Multi-sectoral approaches are suggested by these findings in order to improve the child-fostering capacity of mothers living with HIV. Improving social support, family functioning and general self-rated health among HIV-infected mothers may not only provide protective benefits for the mothers and their children, but also expand the community’s capacity to care for orphan and vulnerable children. 相似文献
23.
The midwifery art has emphasised the uniqueness of human beings throughout its Nordic history. The educated Nordic midwife has in the last decade celebrated several hundred years of memories. This article studies how the key ideas of the midwifery art and patterns of ideas become evident in the zeitgeist from the beginning of the 19th century to the millennium in the Nordic countries. The legacy and pattern of ideas of the art of midwifery are interpreted in relation to the texts of the selected historical sources and based on Ricoeur's phenomenological-hermeneutic approach to the text and further to the dedication of understanding and interpretation. The historical sources refer to unprinted primary sources from historical archives and printed secondary and tertiary sources. The patterns of ideas include a tripartite whole: the true cultivation of the head, the philosophy and aesthetics of the hand, the strength of the heart and the drive of calling. These ideas open for unique visions and attest to the evident in modern midwives. Today's midwives have academic training with examinations, and the education is based on scientific evidence. The midwife profession is authorised by the state and supervised by the authorities. 相似文献
24.
25.
26.
27.
Eloise R. Galligan Lindsey Fix Sameera Husain Philip Zachariah Darrell J. Yamashiro Christine T. Lauren 《Journal of cutaneous pathology》2019,46(2):159-161
We report a case of disseminated Trichosporon asahii in a patient on systemic antifungal therapy who presented with multiple cutaneous nodules suggestive of fungal infection. Histologic features resembled neutrophilic eccrine hidradenitis but staining with periodic acid‐Schiff and Gomori methenamine silver confirmed the clinical diagnosis. This case highlights the importance of maintaining suspicion for trichosporonosis and contextualizing histologic findings within the underlying clinical picture. 相似文献
28.
29.
30.