全文获取类型
收费全文 | 5709篇 |
免费 | 995篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 48篇 |
儿科学 | 216篇 |
妇产科学 | 139篇 |
基础医学 | 876篇 |
口腔科学 | 131篇 |
临床医学 | 850篇 |
内科学 | 943篇 |
皮肤病学 | 52篇 |
神经病学 | 742篇 |
特种医学 | 168篇 |
外国民族医学 | 1篇 |
外科学 | 651篇 |
综合类 | 445篇 |
一般理论 | 3篇 |
预防医学 | 470篇 |
眼科学 | 113篇 |
药学 | 582篇 |
中国医学 | 2篇 |
肿瘤学 | 273篇 |
出版年
2021年 | 71篇 |
2019年 | 75篇 |
2018年 | 101篇 |
2017年 | 70篇 |
2016年 | 66篇 |
2015年 | 93篇 |
2014年 | 132篇 |
2013年 | 173篇 |
2012年 | 256篇 |
2011年 | 273篇 |
2010年 | 129篇 |
2009年 | 113篇 |
2008年 | 215篇 |
2007年 | 232篇 |
2006年 | 246篇 |
2005年 | 270篇 |
2004年 | 242篇 |
2003年 | 237篇 |
2002年 | 240篇 |
2001年 | 202篇 |
2000年 | 212篇 |
1999年 | 194篇 |
1998年 | 76篇 |
1997年 | 48篇 |
1996年 | 64篇 |
1995年 | 63篇 |
1994年 | 52篇 |
1993年 | 52篇 |
1992年 | 147篇 |
1991年 | 160篇 |
1990年 | 125篇 |
1989年 | 143篇 |
1988年 | 117篇 |
1987年 | 171篇 |
1986年 | 131篇 |
1985年 | 129篇 |
1984年 | 114篇 |
1983年 | 103篇 |
1982年 | 80篇 |
1981年 | 86篇 |
1980年 | 98篇 |
1979年 | 101篇 |
1978年 | 65篇 |
1977年 | 66篇 |
1976年 | 51篇 |
1975年 | 53篇 |
1974年 | 67篇 |
1972年 | 66篇 |
1971年 | 47篇 |
1970年 | 48篇 |
排序方式: 共有6705条查询结果,搜索用时 15 毫秒
21.
The management of injuries--a review of deaths in hospital 总被引:1,自引:0,他引:1
S A Deane P L Gaudry P Woods D Cass M J Hollands R J Cook C Read 《The Australian and New Zealand journal of surgery》1988,58(6):463-469
A prospective review was undertaken of the management of 111 consecutive patients who died in hospital after admission for treatment of injuries. A standard set of data relating to each patient was reviewed by each member of a trauma death audit committee and then by the whole committee. Autopsy reports were available on all patients. Conclusions were drawn concerning defective aspects of patient management and possible avoidance of each death. Injury severity was assessed using the Trauma Score (TS) and Injury Severity Score (ISS). The possibly avoidable death (PAD) rate was 17%. The most common defects in management were related to inadequate fluid resuscitation and delays in definitive management. The greatest contributions to the PAD rate were from inadequate fluid resuscitation, delays and inadequate perception of the severity of injuries or significance of clinical deterioration. Increasing age was related to a higher frequency of PAD. PAD rate in the presence of severe head injury was 8%, but was 63% in the absence of a severe head injury. It is concluded that review of all trauma deaths is an achievable, beneficial and essential part of a hospital-based integrated trauma service. TS and ISS are not sufficiently sensitive to justify their use in selecting deaths for review. Improved blood volume replacement, earlier and more direct management and supervision by senior specialist staff, and elimination of causes of delay in patient management should all decrease the death rate from injuries particularly in patients without severe head injury. 相似文献
22.
A Critical Analysis of the Sacks-Vine Gastrostomy Tube: A Review of 120 Consecutive Procedures 总被引:1,自引:0,他引:1
P. G. Foutch D.O. F.A.C.G. C. A. Woods M.D. G. A. Talbert R.N. R. A. Sanowski M.D. F.A.C.G. 《The American journal of gastroenterology》1988,83(8):812-815
Results from 120 patients managed with a Sacks-Vine gastrostomy tube were analyzed. In our experience, this device can be successfully placed in almost all cases (96%), and has a low rate for procedure-related mortality (0.8%) and major (4.4%) and minor (12.4%) complications. Advantages and problems associated with this feeding catheter are discussed. The Sacks-Vine gastrostomy tube is a reasonable alternative to other catheters placed by different methods. 相似文献
23.
24.
25.
Cameron Platell John Mackay Brian Collopy Roy Fink Peter Ryan Rodney Woods 《ANZ journal of surgery》1995,65(8):570-575
This study reviewed a series of patients with Crohn's disease managed by surgeons of the Department of Colon and Rectal Surgery, St Vincent's Hospital, Melbourne, since 1978. There were 306 patients: 171 males and 135 females. The mean age at diagnosis was 33.4 years (range 11–93). The distribution of the disease was small bowel 32.3%, small bowel and colon 26.5%, colon 39.9%, and anal disease alone 1.6%. A total of 416 abdominal operations were performed on 204 patients. The commonest indications for surgery were failed medical therapy (21.9%), small bowel obstruction (15.9%), enteric tistula (10.1%), and intra-abdominal abscess (10.1%). The most frequently performed procedures were ileocolic resection with anastomosis (28.8%), small bowel resection (9.4%), and total colectomy and ileostomy (7.0%). Postoperative complications included anastomotic leaks in 4.0%. intra-abdominal abscess formation in 3.6%, and enterocutaneous fistulae developed in 6%. Three patients died during the review period. During follow up (mean 84.4). 30% of patients developed recurrence requiring further surgery at a mean of 72.7 months postoperatively. The most frequent site for a recurrence was the pre-anastomotic terminal ileum (61.7%). In conclusion. the majority of patients with Crohn's disease will require resectional surgery at some stage. This can be performed with a low mortality and morbidity, and a recurrence rate of around 5% per year. 相似文献
26.
H M Cheng O S Singh K K Kwong J Xiong B T Woods T J Brady 《Optometry and vision science》1992,69(9):698-701
We have obtained multislice magnetic resonance (MR) images of the eye and calculated ocular dimensions along the three cardinal axes: antero-posterior (A-P), equatorial, and vertical. We found no difference in the shape of hyperopic (average refractive error: +3.72 D) and emmetropic eyes, both of which had an equatorial diameter longer than the A-P and vertical diameters. Myopic eyes (average refractive error: -6.54 D) were larger than hyperopic eyes, and most had the same spheroelliptical shape as that of the emmetropic and hyperopic eyes. The results suggest that during myopic progression an overall enlargement or a radial volume expansion has occurred. 相似文献
27.
Recurrent bilateral renal agenesis in siblings is very rare. Presented is a case diagnosed with sonographically aided amnioinfusion at 18 weeks in a woman with an infant affected with the same condition in a previous pregnancy. 相似文献
28.
29.
30.
Conventional follicle harvesting techniques for hair transplantation are limited by the available scalp donor hair. The development of an innovative technique of microsurgical single follicular unit extraction has made it possible to exploit body hair grafts for scalp transplantation. This case study reports on 18 months of follow-up on a patient with extensive scalp scarring who underwent a transplantation procedure using donor chest hair. The photographically documented results show a change in the length of the chest hair measuring an average of 4 cm at transplant to 15 cm by 18 months post-transplant. The transplanted chest grafts provided an excellent cosmetic result for hair replacement. 相似文献