全文获取类型
收费全文 | 3066篇 |
免费 | 180篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 27篇 |
儿科学 | 121篇 |
妇产科学 | 78篇 |
基础医学 | 414篇 |
口腔科学 | 28篇 |
临床医学 | 410篇 |
内科学 | 475篇 |
皮肤病学 | 58篇 |
神经病学 | 271篇 |
特种医学 | 49篇 |
外科学 | 326篇 |
综合类 | 29篇 |
一般理论 | 3篇 |
预防医学 | 480篇 |
眼科学 | 37篇 |
药学 | 177篇 |
中国医学 | 3篇 |
肿瘤学 | 269篇 |
出版年
2023年 | 27篇 |
2022年 | 15篇 |
2021年 | 84篇 |
2020年 | 51篇 |
2019年 | 87篇 |
2018年 | 91篇 |
2017年 | 59篇 |
2016年 | 77篇 |
2015年 | 74篇 |
2014年 | 106篇 |
2013年 | 166篇 |
2012年 | 249篇 |
2011年 | 297篇 |
2010年 | 125篇 |
2009年 | 121篇 |
2008年 | 226篇 |
2007年 | 244篇 |
2006年 | 233篇 |
2005年 | 185篇 |
2004年 | 197篇 |
2003年 | 156篇 |
2002年 | 131篇 |
2001年 | 15篇 |
2000年 | 9篇 |
1999年 | 13篇 |
1998年 | 16篇 |
1997年 | 19篇 |
1996年 | 12篇 |
1995年 | 20篇 |
1994年 | 11篇 |
1993年 | 15篇 |
1992年 | 9篇 |
1991年 | 8篇 |
1990年 | 19篇 |
1989年 | 7篇 |
1988年 | 9篇 |
1987年 | 4篇 |
1986年 | 5篇 |
1985年 | 4篇 |
1984年 | 7篇 |
1983年 | 4篇 |
1982年 | 5篇 |
1979年 | 7篇 |
1978年 | 5篇 |
1975年 | 3篇 |
1973年 | 2篇 |
1969年 | 4篇 |
1966年 | 3篇 |
1965年 | 2篇 |
1934年 | 2篇 |
排序方式: 共有3255条查询结果,搜索用时 31 毫秒
1.
We describe two cases of acute‐onset erythema, peeling, and pruritus or tenderness isolated to the palmar surface of the hands. A detailed exposure history revealed significant periods of contact with homemade slime; given the clinical findings and timing of exposure, acute contact dermatitis of the hands was suspected. Symptoms and clinical findings resolved after avoidance of the suspected causative contactants. There are few if any reported cases of contact dermatitis to homemade slime in the literature; this serves to highlight the importance of a thorough exposure history in the evaluation of hand dermatitis. 相似文献
2.
3.
4.
5.
6.
Rachel A. Katzenellenbogen Joseph J. Carter Joshua E. Stern Melinda S. Butsch Kovacic Parinda A. Mehta Sharon L. Sauter Denise A. Galloway Rachel L. Winer 《Clinical and Vaccine Immunology : CVI》2015,22(4):413-420
Persons with Fanconi anemia (FA) are at risk for human papillomavirus (HPV)-associated cancers; however, their natural HPV exposure and infection rates are unknown as is the adequacy with which they mount antibodies to HPV vaccination. This study aimed to determine, in 62 persons with FA, the seroprevalence of skin and mucosal HPV types, the seroprevalence in individuals self-reporting a history of HPV vaccination, and the factors associated with HPV seropositivity. A bead Luminex assay was used to determine seropositivity for HPV1, -2, and -4 (low-risk skin), -6 and -11 (low-risk mucosal, included in one HPV vaccine), -16 and -18 (high-risk mucosal, included in both HPV vaccines), and -52 and -58 (high-risk mucosal). Health- and behavior-related questionnaires were completed. Type-specific seroprevalence estimates and participant characteristics associated with seroprevalence were calculated; 48% reported HPV vaccination. Type-specific seropositivity in unvaccinated persons ranged from 7 to 21% for skin HPV types and 7 to 38% for mucosal HPV types. Among the unvaccinated participants, adults versus children demonstrated increased HPV1, -6, -16, and -58 seroprevalence of 45% versus 6%, 64% versus 22%, 64% versus 17%, and 36% versus 0%, respectively (all P < 0.05). The vaccinated participants versus the nonvaccinated participants demonstrated increased seroprevalence of HPV6, -11, -16, and -18 of 92% versus 38%, 92% versus 24%, 96% versus 34%, and 75% versus 7%, respectively (all P < 0.0001). Our data demonstrate that the unvaccinated participants had serologic evidence of prior skin and mucosal HPV infections and that seroprevalence increased among adults; in self-reported vaccinees, seroprevalence of HPV vaccine types was 75 to 96%. 相似文献
7.
8.
Melinda Boss Peter Hartmann Jennifer Turner Douglas Pritchard Rafael Prez‐Escamilla Rhonda Clifford 《Maternal & child nutrition》2020,16(3)
During the last decade, there have been several publications highlighting the need for consistent terminology in breastfeeding research. Standard terms and definitions are essential for the comparison and interpretation of scientific studies that, in turn, support evidence‐based education, consistency of health care, and breastfeeding policy. Inconsistent advice is commonly reported by mothers to contribute to early weaning. A standard language is the fundamental starting point required for the provision of consistent advice. LactaPedia ( www.lactapedia.com ) is a comprehensive lactation glossary of over 500 terms and definitions created during the development of LactaMap ( www.lactamap.com ), an online lactation care support system. This paper describes the development of LactaPedia, a website that is accessible free of charge to anyone with access to the Internet. Multiple methodological frameworks were incorporated in LactaPedia's development in order to meet the needs of a glossary to support both consistent health care and scientific research. The resulting LactaPedia methodology is a six‐stage process that was developed inductively and includes framework to guide vetting and extension of its content using public feedback via discussion forums. The discussion forums support ongoing usability and refinement of the glossary. The development of LactaPedia provides a fundamental first step towards improving breastfeeding outcomes that are currently well below World Health Organisation recommendations globally. 相似文献
9.
10.