全文获取类型
收费全文 | 1419403篇 |
免费 | 101395篇 |
国内免费 | 7495篇 |
专业分类
耳鼻咽喉 | 20522篇 |
儿科学 | 41130篇 |
妇产科学 | 39973篇 |
基础医学 | 198124篇 |
口腔科学 | 41537篇 |
临床医学 | 122441篇 |
内科学 | 276627篇 |
皮肤病学 | 31401篇 |
神经病学 | 111531篇 |
特种医学 | 56727篇 |
外国民族医学 | 464篇 |
外科学 | 217746篇 |
综合类 | 41262篇 |
现状与发展 | 22篇 |
一般理论 | 447篇 |
预防医学 | 97068篇 |
眼科学 | 33910篇 |
药学 | 108241篇 |
85篇 | |
中国医学 | 6331篇 |
肿瘤学 | 82704篇 |
出版年
2018年 | 14167篇 |
2017年 | 11560篇 |
2016年 | 12538篇 |
2015年 | 14599篇 |
2014年 | 20092篇 |
2013年 | 28582篇 |
2012年 | 37851篇 |
2011年 | 40092篇 |
2010年 | 23932篇 |
2009年 | 22908篇 |
2008年 | 37259篇 |
2007年 | 40545篇 |
2006年 | 40910篇 |
2005年 | 39591篇 |
2004年 | 37521篇 |
2003年 | 36374篇 |
2002年 | 35640篇 |
2001年 | 67781篇 |
2000年 | 69446篇 |
1999年 | 59220篇 |
1998年 | 16447篇 |
1997年 | 14978篇 |
1996年 | 13985篇 |
1995年 | 13160篇 |
1994年 | 12306篇 |
1992年 | 44541篇 |
1991年 | 42757篇 |
1990年 | 41983篇 |
1989年 | 40835篇 |
1988年 | 38130篇 |
1987年 | 37417篇 |
1986年 | 35756篇 |
1985年 | 33861篇 |
1984年 | 25305篇 |
1983年 | 21452篇 |
1982年 | 12849篇 |
1981年 | 11711篇 |
1979年 | 24174篇 |
1978年 | 17135篇 |
1977年 | 14886篇 |
1976年 | 13446篇 |
1975年 | 15315篇 |
1974年 | 18145篇 |
1973年 | 17632篇 |
1972年 | 16865篇 |
1971年 | 15768篇 |
1970年 | 14968篇 |
1969年 | 14395篇 |
1968年 | 13508篇 |
1967年 | 12058篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
Analysis of accident logs in child day care centers indicates that biting is common, especially among toddlers 13 to 30 months of age. Children of this age often lack appropriate verbal skills and resort to aggressive means to achieve their goals. Still awkward in gross-motor skills, toddlers can also suffer self-bites following accidental falls. According to medical reports, human bites sometimes are more virulent than animal bites and can cause severe trauma. Although the AIDS virus has been cultured from saliva, transmission from saliva alone has not been documented. Bite injuries in day care, however, usually are minor and can be treated by washing, applying cold compresses, and comforting the child. Suggested methods to diminish the frequency of biting in day care include physical changes within the room, behavior modification, and other classroom management techniques. 相似文献
103.
104.
To study the effect of alcohol on glucose and insulin metabolism,a simultaneous infusion of glucose and insulin was given for150 min to healthy volunteers, once during alcohol and onceduring calorie-free gingerale (control) ingestion. During alcoholintake, the average steady-state (between 100 and 150 min) glucoseof 5.44±0.39 mmol/1. and the average steady-state insulinof 6.3±1.1 ng/ml were significantly higher than those(4.0±0.39 mmol/1. of glucose and 4.4±0.6 ng/mlof insulin) observed during the control state. Despite the highersteady-state insulin concentrations, the glucose metabolismwas significantly less during alcohol ingestion. These findingssuggest alcohol-induced impairment in glucose metabolism iscaused by a decreased tissue sensitivity to insulin. 相似文献
105.
H Bussey C Quandt R Rospond W Loesch 《The Journal of the American Board of Family Practice / American Board of Family Practice》1988,1(4):282-287
One of our patients had trouble maintaining therapeutic and safe levels of theophylline, even though we were careful in planning and monitoring her drug regimen. This case report shows how we were able to use principles of pharmacokinetics to distinguish among plausible explanations for her experience. We discovered that she was not taking the drug consistently as prescribed and that supervised administration resolved apparent contradictions between doses and serum levels. We believe that physicians can use the same information and methods that we used to get better and safer results from theophylline therapy. 相似文献
106.
107.
108.
109.
110.