全文获取类型
收费全文 | 1256篇 |
免费 | 51篇 |
国内免费 | 42篇 |
专业分类
耳鼻咽喉 | 7篇 |
儿科学 | 43篇 |
妇产科学 | 31篇 |
基础医学 | 121篇 |
口腔科学 | 24篇 |
临床医学 | 154篇 |
内科学 | 327篇 |
皮肤病学 | 34篇 |
神经病学 | 36篇 |
特种医学 | 202篇 |
外科学 | 153篇 |
综合类 | 45篇 |
预防医学 | 42篇 |
眼科学 | 17篇 |
药学 | 71篇 |
中国医学 | 1篇 |
肿瘤学 | 41篇 |
出版年
2015年 | 14篇 |
2014年 | 13篇 |
2013年 | 22篇 |
2011年 | 11篇 |
2010年 | 22篇 |
2009年 | 23篇 |
2008年 | 8篇 |
2007年 | 34篇 |
2006年 | 13篇 |
2005年 | 14篇 |
2002年 | 6篇 |
2001年 | 6篇 |
1999年 | 17篇 |
1998年 | 44篇 |
1997年 | 53篇 |
1996年 | 60篇 |
1995年 | 54篇 |
1994年 | 63篇 |
1993年 | 52篇 |
1992年 | 19篇 |
1991年 | 20篇 |
1990年 | 24篇 |
1989年 | 48篇 |
1988年 | 46篇 |
1987年 | 49篇 |
1986年 | 39篇 |
1985年 | 26篇 |
1984年 | 24篇 |
1983年 | 27篇 |
1982年 | 23篇 |
1981年 | 11篇 |
1980年 | 16篇 |
1979年 | 7篇 |
1978年 | 7篇 |
1977年 | 13篇 |
1976年 | 12篇 |
1975年 | 7篇 |
1972年 | 7篇 |
1967年 | 5篇 |
1963年 | 6篇 |
1960年 | 5篇 |
1959年 | 39篇 |
1958年 | 43篇 |
1957年 | 52篇 |
1956年 | 53篇 |
1955年 | 53篇 |
1954年 | 32篇 |
1949年 | 16篇 |
1948年 | 22篇 |
1946年 | 5篇 |
排序方式: 共有1349条查询结果,搜索用时 31 毫秒
61.
RICHARD A. COOPER M.D. PETER KUCHARSKI M.D. 《The American journal of gastroenterology》1978,70(2):175-178
Callstone ileus is, of course, a well known cause of small bowel obstruction. A gallstone, however, is a very rare cause of gastric outlet obstruction. Three cases illustrating this phenomenon are exhibited. Radiographs were diagnostic in two of the studies. All three patients did well postoperatively. 相似文献
62.
63.
64.
R. L. COOPER FRACO FRACS I. J. CONSTABLE FRACO FRACS FRCS 《Clinical & experimental ophthalmology》1983,11(4):287-294
Thirteen patients with varying grades of suppurative keratitis were studied with regard to their response to keratoplasty. In all patients there was a rapid improvement in symptoms and signs. In eight of the 13 there was restoration at least of previous function: one patient lost all vision due to secondary closed-angle glaucoma, because he refused further surgery. Corneal graft opacification occurred in three eyes; one other became partially opaque; whilst in a fourth, the lamellar graft remained clear while the original autograft failed. At last follow-up, all eyes were normotensive and free of symptoms. Keratoplasty should assume an important part of the management of suppurative keratitis, from both theoretical and practical considerations. 相似文献
65.
Recovery from day-case anaesthesia 总被引:1,自引:0,他引:1
Sixty unpremedicated patients undergoing dilatation and curettage were allocated randomly to receive one of three inhalational agents (halothane, enflurane or isoflurane) to supplement 67% nitrous oxide in oxygen after induction of anaesthesia with methohexitone. Recovery was assessed by the time patients took to open their eyes, to give their correct date of birth, to regain their pre-operative level of manipulative skill with a children's postbox toy, and by comparing pre-operative and postoperative performance of a paper and pencil test (the p-deletion test). There was no difference in the time to open eyes or to regain their pre-operative score with the postbox whether the patients received halothane, enflurane or isoflurane. Patients in the isoflurane group took longer than patients in the enflurane group to give their correct date of birth, but they performed better in the p-deletion test postoperatively, completing more lines with the same number of errors. Patients receiving enflurane committed more errors postoperatively in the p-deletion test. The incidence of complications was low and was not influenced by the choice of inhalational agent. 相似文献
66.
67.
The prolonged survival of upper respiratory tract and intestinal pathogens on swabs 总被引:8,自引:0,他引:8 下载免费PDF全文
COOPER GN 《Journal of clinical pathology》1957,10(3):226-230
68.
Differential CT diagnosis of extruded nucleus pulposus 总被引:1,自引:0,他引:1
69.
70.