全文获取类型
收费全文 | 1004篇 |
免费 | 58篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 47篇 |
妇产科学 | 15篇 |
基础医学 | 120篇 |
口腔科学 | 32篇 |
临床医学 | 82篇 |
内科学 | 234篇 |
皮肤病学 | 17篇 |
神经病学 | 17篇 |
特种医学 | 163篇 |
外国民族医学 | 1篇 |
外科学 | 80篇 |
综合类 | 60篇 |
预防医学 | 65篇 |
眼科学 | 8篇 |
药学 | 64篇 |
中国医学 | 9篇 |
肿瘤学 | 51篇 |
出版年
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 22篇 |
2020年 | 17篇 |
2019年 | 13篇 |
2018年 | 27篇 |
2017年 | 13篇 |
2016年 | 18篇 |
2015年 | 17篇 |
2014年 | 27篇 |
2013年 | 46篇 |
2012年 | 43篇 |
2011年 | 63篇 |
2010年 | 61篇 |
2009年 | 52篇 |
2008年 | 44篇 |
2007年 | 44篇 |
2006年 | 33篇 |
2005年 | 24篇 |
2004年 | 15篇 |
2003年 | 20篇 |
2002年 | 22篇 |
2001年 | 21篇 |
2000年 | 18篇 |
1999年 | 14篇 |
1998年 | 36篇 |
1997年 | 36篇 |
1996年 | 37篇 |
1995年 | 38篇 |
1994年 | 24篇 |
1993年 | 22篇 |
1992年 | 7篇 |
1991年 | 5篇 |
1990年 | 9篇 |
1989年 | 15篇 |
1988年 | 14篇 |
1987年 | 12篇 |
1986年 | 13篇 |
1985年 | 10篇 |
1984年 | 12篇 |
1983年 | 14篇 |
1982年 | 12篇 |
1981年 | 13篇 |
1980年 | 16篇 |
1979年 | 5篇 |
1978年 | 9篇 |
1977年 | 2篇 |
1976年 | 8篇 |
1975年 | 5篇 |
1969年 | 2篇 |
排序方式: 共有1066条查询结果,搜索用时 140 毫秒
1.
Extranodal lymphomas presenting as soft tissue sarcomas to a sarcoma service over a two-year period.
J K O'Neill V Devaraj D A T Silver P Sarsfield C A Stone 《Journal of plastic, reconstructive & aesthetic surgery》2007,60(6):646-654
Non-Hodgkin's lymphoma usually presents with lymphadenopathy at multiple sites but can also involve any part of the musculoskeletal system. Occasionally the presentation is with a soft tissue mass. The presentation of large, superficial lymphomatous masses is similar both clinically and radiologically to that of soft tissue sarcomas. The six cases of lymphoma presenting to the Exeter Sarcoma Service as suspected soft tissue sarcomas, over a two-year period (2002-2004), are presented. We describe the clinical and imaging characteristics of these tumours and their subsequent management. Our cases showed variability in presentation. Only one of the six cases presented with pain and one with tenderness. Four of the cases had no lymphadenopathy and the other two had lymphadenopathy restricted to one nodal basin. Overlying soft tissue swelling occurred in four cases and in distal limb swelling beyond the mass in one case. Radiologically, lymphomas are known to be likely to exhibit confluent lymphadenopathy that is rare in patients with soft tissue sarcoma. Confluent lymphadenopathy was demonstrated in only one case of this series of patients. It is thought that lymphomas infiltrate across anatomical fascial planes more readily than sarcomas and in four of our six cases this feature was present. Clinical history, examination and MRI are insufficient to differentiate between soft tissue sarcoma and lymphoma and the importance of obtaining a pathological diagnosis prior to surgery is clear. It is crucial to differentiate lymphoma from sarcoma in order to avoid unnecessary excisional procedures in lymphoma patients. 相似文献
2.
3.
4.
5.
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
6.
7.
8.
9.
10.