全文获取类型
收费全文 | 349465篇 |
免费 | 287594篇 |
国内免费 | 41834篇 |
专业分类
耳鼻咽喉 | 3360篇 |
儿科学 | 5650篇 |
妇产科学 | 2762篇 |
基础医学 | 95714篇 |
口腔科学 | 4272篇 |
临床医学 | 71180篇 |
内科学 | 103566篇 |
皮肤病学 | 5502篇 |
神经病学 | 24804篇 |
特种医学 | 12883篇 |
外国民族医学 | 22篇 |
外科学 | 50883篇 |
综合类 | 80740篇 |
现状与发展 | 26篇 |
一般理论 | 5篇 |
预防医学 | 52142篇 |
眼科学 | 19969篇 |
药学 | 70382篇 |
159篇 | |
中国医学 | 54671篇 |
肿瘤学 | 20201篇 |
出版年
2022年 | 6560篇 |
2021年 | 7483篇 |
2020年 | 9448篇 |
2019年 | 15019篇 |
2018年 | 15610篇 |
2017年 | 16872篇 |
2016年 | 14916篇 |
2015年 | 16814篇 |
2014年 | 17969篇 |
2013年 | 18888篇 |
2012年 | 21906篇 |
2011年 | 24003篇 |
2010年 | 25260篇 |
2009年 | 32253篇 |
2008年 | 20072篇 |
2007年 | 16333篇 |
2006年 | 15070篇 |
2005年 | 13842篇 |
2004年 | 14370篇 |
2003年 | 13488篇 |
2002年 | 12910篇 |
2001年 | 14185篇 |
2000年 | 8957篇 |
1999年 | 13111篇 |
1998年 | 14083篇 |
1997年 | 14020篇 |
1996年 | 14966篇 |
1995年 | 15138篇 |
1994年 | 14899篇 |
1993年 | 13563篇 |
1992年 | 12792篇 |
1991年 | 12176篇 |
1990年 | 11148篇 |
1989年 | 10986篇 |
1988年 | 10525篇 |
1987年 | 9873篇 |
1986年 | 9392篇 |
1985年 | 8455篇 |
1984年 | 6535篇 |
1983年 | 6546篇 |
1982年 | 7608篇 |
1981年 | 7144篇 |
1980年 | 6806篇 |
1979年 | 6642篇 |
1978年 | 5817篇 |
1977年 | 6122篇 |
1976年 | 5743篇 |
1975年 | 5482篇 |
1974年 | 5034篇 |
1972年 | 4754篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
The authors present the case of a 43-year-old women who underwent a laparoscopic gastric bypass in 2003 for morbid obesity.
They report that 2 years later, she had maintained significant weight loss, but had developed acute abdominal pain, followed
by nausea and emesis. In the emergency room, she had diffuse tenderness, tachycardia, and leukocytosis. After initial resuscitation,
a computed tomography was performed, which showed free air above the liver and thickened small bowel loops. She was brought
emergently to the operating room for laparoscopy. At surgery, turbid fluid and inflamed small bowel loops were seen. A perforated
marginal ulcer was discovered in the Roux limb, approximately 2 cm distal to the gastrojejunal anastomosis. The perforation
was oversewn primarily and patched with omentum. The repair was tested by intraoperative endoscopy. A gastrostomy tube also
was placed within the gastric remnant for enteral access. The patient did extremely well postoperatively, and had an uneventful
postoperative course. She was discharged on postoperative day 4. The gastrostomy tube was removed at 1 month, and at this
writing, she remains well since surgery. An upper endoscopy at 2 months was completely normal, and the Helicobacter pylori test results were negative. The gastric pouch had not significantly enlarged since initial surgery, as indicated by both
endoscopy and barium study. Marginal ulcer is reported to be 0.6% to 16% after laparoscopic gastric bypass [1]. Etiologies include gastrogastric fistula, excessively large gastric pouch containing antral mucosa, H. pylori infection, nonsteroidal antiinflammatory use, and smoking [2]. Unfortunately, none of these applied to the reported patient. Because her exact etiology remains unknown, she at this writing
continues to receive proton pump inhibitor therapy.
Electronic supplementary material The online version of this article (doi: ) contains supplementary material, which is available to authorized users. 相似文献
972.
973.
974.
975.
976.
977.
Pawan Kumar Dhruva Rao Deborah Clements Michael M. Davies Jared Torkington 《Surgical endoscopy》2007,21(6):1036
We present our comments on the above article. 相似文献
978.
979.
980.
目的观察丙丁酚对载脂蛋白E-/-小鼠主动脉粥样硬化斑块形成及主动脉凝集素样氧化型低密度脂蛋白受体1表达的影响,以探讨丙丁酚调节血脂以外的可能的抗动脉粥样硬化作用机制。方法将21只4周龄的雄性载脂蛋白E-/-小鼠随机分成基础饮食对照组、高脂饮食对照组和高脂饮食加丙丁酚组 相似文献