全文获取类型
收费全文 | 2115篇 |
免费 | 260篇 |
国内免费 | 21篇 |
专业分类
耳鼻咽喉 | 11篇 |
儿科学 | 127篇 |
妇产科学 | 30篇 |
基础医学 | 144篇 |
口腔科学 | 76篇 |
临床医学 | 287篇 |
内科学 | 473篇 |
皮肤病学 | 39篇 |
神经病学 | 236篇 |
特种医学 | 314篇 |
外科学 | 142篇 |
综合类 | 27篇 |
一般理论 | 17篇 |
预防医学 | 323篇 |
眼科学 | 13篇 |
药学 | 48篇 |
肿瘤学 | 89篇 |
出版年
2023年 | 53篇 |
2022年 | 17篇 |
2021年 | 15篇 |
2020年 | 42篇 |
2019年 | 22篇 |
2018年 | 56篇 |
2017年 | 37篇 |
2016年 | 53篇 |
2015年 | 57篇 |
2014年 | 100篇 |
2013年 | 128篇 |
2012年 | 53篇 |
2011年 | 68篇 |
2010年 | 74篇 |
2009年 | 85篇 |
2008年 | 60篇 |
2007年 | 96篇 |
2006年 | 60篇 |
2005年 | 54篇 |
2004年 | 49篇 |
2003年 | 30篇 |
2002年 | 39篇 |
2001年 | 43篇 |
2000年 | 46篇 |
1999年 | 46篇 |
1998年 | 73篇 |
1997年 | 93篇 |
1996年 | 91篇 |
1995年 | 65篇 |
1994年 | 66篇 |
1993年 | 63篇 |
1992年 | 33篇 |
1991年 | 25篇 |
1990年 | 36篇 |
1989年 | 63篇 |
1988年 | 48篇 |
1987年 | 55篇 |
1986年 | 41篇 |
1985年 | 43篇 |
1984年 | 17篇 |
1983年 | 21篇 |
1982年 | 26篇 |
1981年 | 35篇 |
1980年 | 22篇 |
1979年 | 12篇 |
1978年 | 11篇 |
1977年 | 16篇 |
1976年 | 16篇 |
1975年 | 14篇 |
1974年 | 5篇 |
排序方式: 共有2396条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
John McManus MD MCR Nathan D. Magaret MD Jerris R. Hedges MS MD Nicolas B. Rayner BA Matthew Rice JD MD 《Academic emergency medicine》2005,12(9):896-899
Objectives: To assess emergency physician reporting patterns in Oregon before and after the passage of a mandatory intoxicated driving reporting law. Methods: A one‐page survey was mailed to 504 emergency physicians in Oregon in April 2004. Data on reporting frequency were collected using a four‐point ordinal scale regarding motor vehicle crash–involved drivers (MIDs) and intoxicated persons attempting to drive away from the emergency department (DAEDs). Paired observations were assessed for a stated increase in reporting activity following passage of the law using the Wilcoxon signed‐rank test. Associations of postlaw reporting and demographic and knowledge factors were sought using Spearman rank correlation analysis. Results: Of the 504 surveys mailed, 298 (59%) were adequate for analysis. Many respondents (57%) were already aware of the law. Most (92%) agreed that physicians should be mandated to report some crimes. MIDs were always reported by 18% of physicians before the law and by 47% afterward, whereas DAEDs were always reported by 56% of physicians before the law and by 69% afterward. Emergency medicine–trained physicians, higher emergency department census, and increased years of experience were associated with a significantly higher increase in reporting pattern after passage of the law for both MIDs and DAEDs. Conclusions: Although 44% of responding emergency physicians in Oregon were unaware of a mandated reporting law for intoxicated drivers presenting to the ED, most physicians stated an increase in their reporting practice. 相似文献
8.
9.
10.