全文获取类型
收费全文 | 1363753篇 |
免费 | 100088篇 |
国内免费 | 2200篇 |
专业分类
耳鼻咽喉 | 17326篇 |
儿科学 | 44194篇 |
妇产科学 | 37273篇 |
基础医学 | 203521篇 |
口腔科学 | 38521篇 |
临床医学 | 126787篇 |
内科学 | 270061篇 |
皮肤病学 | 29859篇 |
神经病学 | 111619篇 |
特种医学 | 49121篇 |
外国民族医学 | 266篇 |
外科学 | 187435篇 |
综合类 | 26111篇 |
现状与发展 | 3篇 |
一般理论 | 615篇 |
预防医学 | 114724篇 |
眼科学 | 29621篇 |
药学 | 99593篇 |
6篇 | |
中国医学 | 2421篇 |
肿瘤学 | 76964篇 |
出版年
2021年 | 12781篇 |
2019年 | 12837篇 |
2018年 | 16761篇 |
2017年 | 12888篇 |
2016年 | 14225篇 |
2015年 | 16260篇 |
2014年 | 22185篇 |
2013年 | 32965篇 |
2012年 | 45844篇 |
2011年 | 48621篇 |
2010年 | 27763篇 |
2009年 | 26224篇 |
2008年 | 44638篇 |
2007年 | 47290篇 |
2006年 | 46298篇 |
2005年 | 45030篇 |
2004年 | 42866篇 |
2003年 | 40687篇 |
2002年 | 39095篇 |
2001年 | 56516篇 |
2000年 | 57383篇 |
1999年 | 48629篇 |
1998年 | 14121篇 |
1997年 | 12833篇 |
1996年 | 13146篇 |
1995年 | 12331篇 |
1994年 | 11506篇 |
1992年 | 38461篇 |
1991年 | 37851篇 |
1990年 | 36626篇 |
1989年 | 35424篇 |
1988年 | 32849篇 |
1987年 | 32162篇 |
1986年 | 30676篇 |
1985年 | 28892篇 |
1984年 | 22063篇 |
1983年 | 19312篇 |
1982年 | 11517篇 |
1979年 | 21016篇 |
1978年 | 15467篇 |
1977年 | 12857篇 |
1976年 | 11899篇 |
1975年 | 12853篇 |
1974年 | 15639篇 |
1973年 | 15390篇 |
1972年 | 14536篇 |
1971年 | 13570篇 |
1970年 | 12805篇 |
1969年 | 12081篇 |
1968年 | 11244篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
63.
Family-centered care (FCC) for sick newborns is emerging as a paradigmatic shift in the practice of facility-based newborn care. It seeks to transforming a provider-centered model into a client-centered one and thus build a new therapeutic alliance. FCC is the cornerstone of continuum of care, imparting caregiving competencies to parents/caregivers both within institutions as well as after the discharge. This has potential gains for the newborn, family members, and facility-level staff. The initial model piloted in tertiary-care settings is now undergoing translation at five sites across the country; the outcomes are keenly awaited. 相似文献
64.
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)
65.
Michael E Egger Joanna M Ohlendorf Charles R Scoggins Kelly M McMasters Robert C G Martin II 《HPB : the official journal of the International Hepato Pancreato Biliary Association》2015,17(9):839-845
BackgroundThe aim of this paper is to assess the current state of quality and outcomes measures being reported for hepatic resections in the recent literature.MethodsMedline and PubMed databases were searched for English language articles published between 1 January 2002 and 30 April 2013. Two examiners reviewed each article and relevant citations for appropriateness of inclusion, which excluded papers of liver donor hepatic resections, repeat hepatectomies or meta-analyses. Data were extracted and summarized by two examiners for analysis.ResultsFifty-five studies were identified with suitable reporting to assess peri-operative mortality in hepatic resections. In only 35% (19/55) of the studies was the follow-up time explicitly stated, and in 47% (26/55) of studies peri-operative mortality was limited to in-hospital or 30 days. The time period in which complications were captured was not explicitly stated in 19 out of 28 studies. The remaining studies only captured complications within 30 days of the index operation (8/28). There was a paucity of quality literature addressing truly patient-centred outcomes.ConclusionQuality outcomes after a hepatic resection are inconsistently reported in the literature. Quality outcome studies for a hepatectomy should report mortality and morbidity at a minimum of 90 days after surgery. 相似文献
66.
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
67.
68.
Very preterm children are at increased risk of reduced processing speed at 5 years of age,predicted by typical complications of prematurity and prenatal smoking
下载免费PDF全文
![点击此处可从《Acta paediatrica (Oslo, Norway : 1992)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
69.
70.
Maria Gonzalez-Cao Cristina Carrera Juan Francisco Rodriguez Moreno Pedro Rodríguez-Jiménez Mónica Antoñanzas Basa Rosa Feltes Ochoa Teresa Puertolas Eva Muñoz-Couselo José Luis Manzano Ivan Marquez-Rodas Juan Martín-Liberal Ainara Soria Pilar Lopez Criado Almudena Garcia-Castaño Aram Boada Pablo Ayala de Miguel Susana Puig Guillermo Crespo Alfonso Berrocal 《Journal of the American Academy of Dermatology》2021,84(5):1412-1415