全文获取类型
收费全文 | 296504篇 |
免费 | 17243篇 |
国内免费 | 418篇 |
专业分类
耳鼻咽喉 | 4205篇 |
儿科学 | 10291篇 |
妇产科学 | 10253篇 |
基础医学 | 45006篇 |
口腔科学 | 7503篇 |
临床医学 | 24194篇 |
内科学 | 55827篇 |
皮肤病学 | 6313篇 |
神经病学 | 21105篇 |
特种医学 | 11641篇 |
外国民族医学 | 43篇 |
外科学 | 46695篇 |
综合类 | 7765篇 |
现状与发展 | 1篇 |
一般理论 | 160篇 |
预防医学 | 19914篇 |
眼科学 | 6943篇 |
药学 | 20888篇 |
中国医学 | 787篇 |
肿瘤学 | 14631篇 |
出版年
2018年 | 3616篇 |
2017年 | 2658篇 |
2016年 | 3075篇 |
2015年 | 3501篇 |
2014年 | 4583篇 |
2013年 | 7212篇 |
2012年 | 9082篇 |
2011年 | 9461篇 |
2010年 | 6132篇 |
2009年 | 5558篇 |
2008年 | 8678篇 |
2007年 | 9531篇 |
2006年 | 9370篇 |
2005年 | 8969篇 |
2004年 | 8669篇 |
2003年 | 8170篇 |
2002年 | 7759篇 |
2001年 | 13332篇 |
2000年 | 13656篇 |
1999年 | 11422篇 |
1998年 | 3025篇 |
1997年 | 2790篇 |
1996年 | 2636篇 |
1995年 | 2552篇 |
1994年 | 2348篇 |
1992年 | 8319篇 |
1991年 | 8458篇 |
1990年 | 8262篇 |
1989年 | 8088篇 |
1988年 | 7324篇 |
1987年 | 7078篇 |
1986年 | 6731篇 |
1985年 | 6523篇 |
1984年 | 4768篇 |
1983年 | 4121篇 |
1982年 | 2469篇 |
1979年 | 4434篇 |
1978年 | 3229篇 |
1977年 | 2732篇 |
1976年 | 2504篇 |
1975年 | 2836篇 |
1974年 | 3356篇 |
1973年 | 3363篇 |
1972年 | 3122篇 |
1971年 | 2949篇 |
1970年 | 2838篇 |
1969年 | 2583篇 |
1968年 | 2538篇 |
1967年 | 2373篇 |
1966年 | 2265篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
132.
Megan A. O’Grady Kristina Wilson Jennifer J. Harman 《The journal of primary prevention》2009,30(6):716-731
The purpose of this study was to evaluate a single-session peer-led safer sex intervention, based on the Information-Motivation-Behavioral
Skills theoretical model, for college students residing in campus residence halls. Participants (N = 108) were assigned to either an hour long control or 5-module intervention session. Compared to the control condition,
the intervention increased participants’ information and women’s subjective norms about preventative behavior. Both the control
and intervention sessions increased intentions to perform preventative behaviors (e.g., keep condoms available). These preliminary
results suggest that this intervention is promising for increasing constructs associated with safer sexual behavior and could
easily be implemented by residence hall staff. 相似文献
133.
134.
135.
WANGENSTEEN OH 《Wisconsin medical journal》1949,48(7):591-597
136.
137.
138.
139.
140.
UVA solarium versus UVB phototherapy of atopic dermatitis: a paired-comparison study 总被引:1,自引:0,他引:1
In a paired-comparison study, 21 patients suffering from atopic dermatitis were treated with fluorescent tubes radiating mainly ultraviolet A (UVA) on one half of the body and with tubes radiating mainly UVB on the other. Treatment was given three times a week for up to 8 weeks. Eight variables reflecting disease status were recorded and the sum of these comprised the total score. The total score and the overall evaluation score were better with UVA therapy (P less than 0.02 and P = 0.01, respectively). No statistically significant difference for the pruritus score was found. The reduction in extent of dermatitis, seen with both therapies, was more pronounced with UVA (P less than 0.05). Differences in the healing score were not statistically significant. Treatment with UVA resulted in healing or considerable improvement in 15 patients and 13 patients showed improvement when treated with UVB. A better result was found with UVA in 10 subjects and with UVB in two subjects. Equal results occurred with both UVA and UVB in nine of the patients although most preferred UVA treatment. 相似文献