全文获取类型
收费全文 | 14908篇 |
免费 | 766篇 |
国内免费 | 37篇 |
专业分类
耳鼻咽喉 | 130篇 |
儿科学 | 450篇 |
妇产科学 | 2033篇 |
基础医学 | 2138篇 |
口腔科学 | 466篇 |
临床医学 | 1654篇 |
内科学 | 2678篇 |
皮肤病学 | 238篇 |
神经病学 | 997篇 |
特种医学 | 649篇 |
外科学 | 1623篇 |
综合类 | 104篇 |
一般理论 | 1篇 |
预防医学 | 1236篇 |
眼科学 | 236篇 |
药学 | 571篇 |
中国医学 | 56篇 |
肿瘤学 | 451篇 |
出版年
2021年 | 181篇 |
2020年 | 103篇 |
2019年 | 179篇 |
2018年 | 235篇 |
2017年 | 186篇 |
2016年 | 162篇 |
2015年 | 242篇 |
2014年 | 342篇 |
2013年 | 581篇 |
2012年 | 565篇 |
2011年 | 599篇 |
2010年 | 416篇 |
2009年 | 542篇 |
2008年 | 612篇 |
2007年 | 562篇 |
2006年 | 570篇 |
2005年 | 583篇 |
2004年 | 543篇 |
2003年 | 512篇 |
2002年 | 474篇 |
2001年 | 196篇 |
2000年 | 169篇 |
1999年 | 409篇 |
1998年 | 373篇 |
1997年 | 406篇 |
1996年 | 416篇 |
1995年 | 364篇 |
1994年 | 315篇 |
1993年 | 224篇 |
1992年 | 255篇 |
1991年 | 260篇 |
1990年 | 203篇 |
1989年 | 193篇 |
1988年 | 181篇 |
1987年 | 149篇 |
1986年 | 188篇 |
1985年 | 148篇 |
1984年 | 131篇 |
1983年 | 159篇 |
1982年 | 106篇 |
1981年 | 94篇 |
1980年 | 111篇 |
1979年 | 107篇 |
1978年 | 73篇 |
1977年 | 105篇 |
1976年 | 105篇 |
1975年 | 105篇 |
1974年 | 76篇 |
1973年 | 80篇 |
1922年 | 60篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
4.
Socioeconomic determinants of health related quality of life in childhood and adolescence: results from a European study . von Rueden , U. , Gosch , A. , Rajmil , L. , Bisegger , C. , Ravens-Sieberer , U. , the European KIDSCREEN group ( 2006 ) Journal of Epidemiology and Community Health , 60 , 130 – 135 . 相似文献
5.
M.D. Nithin MD Assistant Professor B.M. Balaraj MD DFM Professor HOD B. Manjunatha MD Associate Professor Shashidhar C. Mestri MD Professor 《Journal of Forensic and Legal Medicine》2009,16(8):460-463
Identification of an individual plays a vital part of any medicolegal investigation. Fingerprint is considered to be the most accurate and reliable indicator in identification.The present study was conducted on 500 South Indian subjects to determine the individuality and the predominant fingerprint pattern among South Indian population. Two-hundred and fifty males and 250 females of South Indian origin were included for this study and rolled prints were taken from all the 10 digits and the same were stored on a proforma.The most frequent fingerprint pattern was ulnar loop in the total population, as well as in the sex wise distribution. 相似文献
6.
7.
Carmem Lúcia Pessoa-Silva Sasi Dharan Stéphane Hugonnet Sylvie Touveneau Klara Posfay-Barbe Riccardo Pfister Didier Pittet 《Infection control and hospital epidemiology》2004,25(3):192-197
OBJECTIVE: To evaluate the dynamics of bacterial contamination of healthcare workers' (HCWs) hands during neonatal care. SETTING: The 20-bed neonatal unit of a large acute care teaching hospital in Geneva, Switzerland. METHODS: Structured observation sessions were conducted. A sequence of care began when the HCW performed hand hygiene and ended when the activity changed or hand hygiene was performed again. Alcohol-based handrub was the standard procedure for hand hygiene. An imprint of the five fingertips of the dominant hand was obtained before and after hand hygiene and at the end of a sequence of care. Regression methods were used to model the final bacterial count according to the type and duration of care and the use of gloves. RESULTS: One hundred forty-nine sequences of care were observed. Commensal skin flora comprised 72.4% of all culture-positive specimens (n = 360). Other microorganisms identified were Enterobacteriaceae (n = 55, 13.8%); Staphylococcus aureus (n = 10, 2.5%); and fungi (n = 7, 1.8%). Skin contact, respiratory care, and diaper change were independently associated with an increased bacterial count; the use of gloves did not fully protect HCWs' hands from bacterial contamination. CONCLUSIONS: These data confirm that hands become progressively contaminated with commensal flora and potential pathogens during neonatal care, and identify activities at higher risk for hand contamination. They also reinforce the need for hand hygiene after a sequence of care, before starting a different task, and after glove removal. 相似文献
8.
9.
10.