全文获取类型
收费全文 | 13113篇 |
免费 | 1067篇 |
国内免费 | 25篇 |
专业分类
耳鼻咽喉 | 81篇 |
儿科学 | 446篇 |
妇产科学 | 353篇 |
基础医学 | 1739篇 |
口腔科学 | 369篇 |
临床医学 | 1542篇 |
内科学 | 2506篇 |
皮肤病学 | 128篇 |
神经病学 | 1050篇 |
特种医学 | 431篇 |
外科学 | 1952篇 |
综合类 | 382篇 |
一般理论 | 11篇 |
预防医学 | 1533篇 |
眼科学 | 140篇 |
药学 | 829篇 |
1篇 | |
中国医学 | 8篇 |
肿瘤学 | 704篇 |
出版年
2021年 | 184篇 |
2020年 | 117篇 |
2019年 | 199篇 |
2018年 | 222篇 |
2017年 | 169篇 |
2016年 | 172篇 |
2015年 | 208篇 |
2014年 | 263篇 |
2013年 | 408篇 |
2012年 | 601篇 |
2011年 | 626篇 |
2010年 | 319篇 |
2009年 | 312篇 |
2008年 | 521篇 |
2007年 | 596篇 |
2006年 | 527篇 |
2005年 | 509篇 |
2004年 | 490篇 |
2003年 | 452篇 |
2002年 | 442篇 |
2001年 | 407篇 |
2000年 | 496篇 |
1999年 | 432篇 |
1998年 | 148篇 |
1997年 | 133篇 |
1996年 | 159篇 |
1995年 | 158篇 |
1994年 | 128篇 |
1993年 | 126篇 |
1992年 | 316篇 |
1991年 | 318篇 |
1990年 | 341篇 |
1989年 | 289篇 |
1988年 | 257篇 |
1987年 | 252篇 |
1986年 | 235篇 |
1985年 | 246篇 |
1984年 | 170篇 |
1983年 | 138篇 |
1980年 | 92篇 |
1979年 | 153篇 |
1978年 | 126篇 |
1977年 | 101篇 |
1976年 | 100篇 |
1975年 | 96篇 |
1974年 | 124篇 |
1973年 | 116篇 |
1972年 | 116篇 |
1971年 | 114篇 |
1970年 | 104篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
61.
62.
63.
64.
Adah Bell Thoms 《Journal of the National Medical Association》1919,11(2):86-Jun;11(2):86
65.
66.
Jonathan L. Temte Shari Barlow Maureen Goss Emily Temte Cristalyne Bell Cecilia He Caroline Hamer Amber Schemmel Bradley Maerz Lily Comp Mitchell Arnold Kimberly Breunig Sarah Clifford Erik Reisdorf Peter Shult Mary Wedig Thomas Haupt James Conway Ronald Gangnon Ashley Fowlkes Amra Uzicanin 《Influenza and other respiratory viruses》2022,16(2):340
BackgroundInfluenza viruses pose significant disease burdens through seasonal outbreaks and unpredictable pandemics. Existing surveillance programs rely heavily on reporting of medically attended influenza (MAI). Continuously monitoring cause‐specific school absenteeism may identify local acceleration of seasonal influenza activity. The Oregon Child Absenteeism Due to Respiratory Disease Study (ORCHARDS; Oregon, WI) implements daily school‐based monitoring of influenza‐like illness‐specific student absenteeism (a‐ILI) in kindergarten through Grade 12 schools and assesses this approach for early detection of accelerated influenza and other respiratory pathogen transmission in schools and surrounding communities.MethodsStarting in September 2014, ORCHARDS combines automated reporting of daily absenteeism within six schools and home visits to school children with acute respiratory infection (ARI). Demographic, epidemiological, and symptom data are collected along with respiratory specimens. Specimens are tested for influenza and other respiratory viruses. Household members can opt into a supplementary household transmission study. Community comparisons are possible using a pre‐existing and highly effective influenza surveillance program, based on MAI at five family medicine clinics in the same geographical area.ResultsOver the first 5 years, a‐ILI occurred on 6634 (0.20%) of 3,260,461 student school days. Viral pathogens were detected in 64.5% of 1728 children with ARI who received a home visit. Influenza was the most commonly detected virus, noted in 23.3% of ill students.ConclusionORCHARDS uses a community‐based design to detect influenza trends over multiple seasons and to evaluate the utility of absenteeism for early detection of accelerated influenza and other respiratory pathogen transmission in schools and surrounding communities. 相似文献
67.
Hannah S. Bell Funmi Odumosu Anna C. Martinez-Hume Heather A. Howard 《Medical anthropology》2019,38(3):224-238
Racial/ethnic identity is contingent and arbitrary, yet it is commonly used to evaluate disease risk and treatment response. Drawing on open-ended interviews with patients and clinicians in two US clinics, we explore how racialized risk is conceptualized and how it impacts patient care and experience. We found that racial/ethnic risk was a common but poorly defined construct for both patients and clinicians, who intermingled concepts of genetics, biology, behavior, and culture, while disregarding historical or structural context. We argue that racializing risk embodies social power in marked and unmarked bodies, reinforcing inequality along racial lines and undermining equitable health care. 相似文献
68.
Guylaine Lefebvre Lisa A Calder Ria De Gorter Cara L Bowman Douglas Bell Michael Bow 《Journal d'obstetrique et gynecologie du Canada》2019,41(5):653-659
This paper describes the recommendations of a national panel on quality improvement in obstetrics to identify priorities for action among five areas of greatest medico-legal risk. Using previously conducted medico-legal data analyses and a systematic literature review, the panel reviewed existing data and developed recommendations for areas of focus in quality improvement in five obstetrical high-risk areas. The panel recommended clarification of definitions in some areas, identified needs for data collection and standardization of practices in others. The most promising interventions to improve care in the five areas were grouped into: standardized processes (such as protocols and communication tools), checklists, audit and feedback, mentoring and coaching, inter-professional communication, simulation and training, and shared decision making guides. This national panel of experts created 18 action-oriented recommendations focused on quality improvement to reduce medico-legal risk and improve the safety of care for Canadian mothers and babies. 相似文献
69.
70.