全文获取类型
收费全文 | 1424篇 |
免费 | 83篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 46篇 |
妇产科学 | 12篇 |
基础医学 | 267篇 |
口腔科学 | 39篇 |
临床医学 | 91篇 |
内科学 | 165篇 |
皮肤病学 | 17篇 |
神经病学 | 185篇 |
特种医学 | 179篇 |
外国民族医学 | 1篇 |
外科学 | 123篇 |
综合类 | 64篇 |
预防医学 | 63篇 |
眼科学 | 5篇 |
药学 | 79篇 |
中国医学 | 4篇 |
肿瘤学 | 168篇 |
出版年
2022年 | 9篇 |
2021年 | 14篇 |
2020年 | 12篇 |
2019年 | 14篇 |
2018年 | 25篇 |
2017年 | 14篇 |
2016年 | 19篇 |
2015年 | 19篇 |
2014年 | 32篇 |
2013年 | 56篇 |
2012年 | 66篇 |
2011年 | 62篇 |
2010年 | 81篇 |
2009年 | 63篇 |
2008年 | 60篇 |
2007年 | 61篇 |
2006年 | 71篇 |
2005年 | 52篇 |
2004年 | 46篇 |
2003年 | 35篇 |
2002年 | 54篇 |
2001年 | 36篇 |
2000年 | 48篇 |
1999年 | 50篇 |
1998年 | 40篇 |
1997年 | 44篇 |
1996年 | 49篇 |
1995年 | 39篇 |
1994年 | 27篇 |
1993年 | 23篇 |
1992年 | 14篇 |
1991年 | 7篇 |
1990年 | 10篇 |
1989年 | 19篇 |
1988年 | 23篇 |
1987年 | 21篇 |
1986年 | 21篇 |
1985年 | 13篇 |
1984年 | 16篇 |
1983年 | 17篇 |
1982年 | 17篇 |
1981年 | 16篇 |
1980年 | 18篇 |
1979年 | 10篇 |
1978年 | 14篇 |
1976年 | 11篇 |
1975年 | 9篇 |
1974年 | 5篇 |
1973年 | 6篇 |
1969年 | 4篇 |
排序方式: 共有1511条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
E MOLKE JENSEN K. A. THIESSEN AA. CHRISTENSEN 《Acta anaesthesiologica Scandinavica》1986,30(2):109-110
The effect of 4 mg oral naloxone on preoperative gastric volume and pH of gastric aspirate was studied in a double-blind, randomized study. Twenty patients received 10 ml of naloxone (4 mg) mixed with 10 ml of orange juice, and 20 patients received 10 ml of isotonic saline mixed with 10 ml of orange juice, 2 h before surgery. Gastric content was obtained immediately after intubation of the trachea. No significant difference in gastric volume and pH of gastric aspirate was found between the two groups. It is concluded that naloxone does not affect gastric emptying and gastric acid secretion to a degree great enough to protect against aspiration of gastric contents into the lungs. 相似文献
5.
6.
7.
The heart has been regarded throughout history as the central core of life and emotions, of kindness and generosity, courage and grief. Cardiac disease can be overwhelming for both the patient and for the partner, and fear of death is a common and quite normal response. Sexual activity after convalescence is a valuable incentive for patients to undergo rehabilitation. Self-confidence and satisfaction can be greatly enhanced by affectionate closeness, and prolonged foreplay can be savored at any age. Sex play is relaxing and healthful whereas anxious sexual preoccupation, frustration, and avoidance may actually be greater risk factors than the mild physical effort involved for coitus or coital alternatives. Male and female patients with cardiac disease expressed regret that their primary physician, cardiologist, or surgeon had not broached the subject of sexual function before or after the acute illness. They were interested, but both patients and physicians were probably uncomfortable with explicit sexual dialogue. Some common sense reminders to post-MI and post-CABS patients about sexual function may be given verbally or in written form, together with diet and exercise instructions. These should include: a heavy meal or heavy alcohol intake before coitus should be avoided; early morning can be an ideal time for coitus or sex play; moderate room temperature is best; a comfortable sexual position can be found with experimentation; chest pain or palpitations are signals to use appropriate medications; and coital death is rare in a stable, long-standing sexual relationship.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
8.
9.
10.