全文获取类型
收费全文 | 693篇 |
免费 | 43篇 |
国内免费 | 17篇 |
专业分类
耳鼻咽喉 | 12篇 |
儿科学 | 43篇 |
妇产科学 | 2篇 |
基础医学 | 47篇 |
口腔科学 | 8篇 |
临床医学 | 76篇 |
内科学 | 133篇 |
皮肤病学 | 6篇 |
神经病学 | 13篇 |
特种医学 | 228篇 |
外科学 | 92篇 |
综合类 | 33篇 |
预防医学 | 22篇 |
眼科学 | 4篇 |
药学 | 11篇 |
中国医学 | 1篇 |
肿瘤学 | 22篇 |
出版年
2022年 | 1篇 |
2021年 | 7篇 |
2020年 | 7篇 |
2018年 | 4篇 |
2017年 | 5篇 |
2016年 | 8篇 |
2015年 | 8篇 |
2014年 | 5篇 |
2013年 | 14篇 |
2012年 | 6篇 |
2011年 | 10篇 |
2010年 | 18篇 |
2009年 | 25篇 |
2008年 | 10篇 |
2007年 | 22篇 |
2006年 | 11篇 |
2005年 | 14篇 |
2004年 | 8篇 |
2003年 | 19篇 |
2002年 | 16篇 |
2001年 | 6篇 |
2000年 | 8篇 |
1999年 | 15篇 |
1998年 | 47篇 |
1997年 | 49篇 |
1996年 | 38篇 |
1995年 | 23篇 |
1994年 | 42篇 |
1993年 | 25篇 |
1992年 | 11篇 |
1991年 | 18篇 |
1990年 | 14篇 |
1989年 | 32篇 |
1988年 | 24篇 |
1987年 | 22篇 |
1986年 | 26篇 |
1985年 | 14篇 |
1984年 | 19篇 |
1983年 | 12篇 |
1982年 | 13篇 |
1981年 | 24篇 |
1980年 | 6篇 |
1979年 | 5篇 |
1978年 | 9篇 |
1977年 | 10篇 |
1976年 | 11篇 |
1975年 | 10篇 |
1956年 | 1篇 |
1927年 | 1篇 |
排序方式: 共有753条查询结果,搜索用时 15 毫秒
1.
2.
3.
D B Hoyt P Hollingsworth-Fridlund D Fortlage J W Davis R C Mackersie 《The Journal of trauma》1992,33(4):586-601
As the number of preventable trauma-related deaths plateaus as a result of trauma system development, new directions for quality improvement in trauma care must come from analyzing morbidity with standardized methods to establish thresholds for provider-related and disease-specific complications. To establish such thresholds and determine priorities for improvements in quality all trauma patients who died, who were admitted to the ICU or OR, who were hospitalized for more than 3 days, or who were interfacility transfers to an academic trauma service, were concurrently evaluated for 1 year. All complication events were defined, reviewed, tabulated, and classified using 135 categories of complications. These categories were subdivided into provider-specific and disease-specific complications. Provider-related complications were classified as justified or unjustified to allow identification of events with a potential for improvement. A total of 1108 patients were admitted (mean ISS, 17); there were 97 deaths. Three potentially preventable deaths were identified, 857 complication events were identified, and 285 provider-related complications were responsible for errors with potential for improvement in 59 events (21%). Disease-specific morbidity was primarily related to infection; pneumonia accounted for 36% of all infectious complications and systemic infection for only 8.6% of infectious complications. Organ failure and other major systemic complications occurred in 2%-8% of patients. This type of analysis forms the basis on which to determine thresholds of provider-specific and disease-specific morbidity in a trauma hospital and serves as a guide to direct efforts toward continuous quality improvement. 相似文献
4.
5.
6.
7.
Can burst fractures be predicted from plain radiographs? 总被引:5,自引:0,他引:5
R T Ballock R Mackersie J J Abitbol V Cervilla D Resnick S R Garfin 《The Journal of bone and joint surgery. British volume》1992,74(1):147-150
Plain radiographs of 67 acute spinal compression fractures in 49 patients were analysed by subjective and objective criteria, using CT scans as the diagnostic standard for the diagnosis of burst fracture. Discriminant analysis correctly predicted the type of fracture in 88% of cases. Burst fractures, however, were almost as frequently misdiagnosed as being wedge compression fractures using this technique, compared with the reading of 25 films from patients without previous information. A quarter of the injuries would have been misdiagnosed had reliance been placed solely on the plain radiographs. CT scans of all patients with acute spinal compression fractures should be considered to decrease this potentially serious diagnostic error. 相似文献
8.
Intestinal schistosomiasis japonica: CT-pathologic correlation 总被引:1,自引:0,他引:1
Lee RC; Chiang JH; Chou YH; Rubesin SE; Wu HP; Jeng WC; Hsu CC; Tiu CM; Chang T 《Radiology》1994,193(2):539
9.
The asymptomatic patient with suspected myocardial contusion 总被引:4,自引:0,他引:4
M B Foil R C Mackersie S R Furst J W Davis M S Swanson D B Hoyt S R Shackford 《American journal of surgery》1990,160(6):638-42; discussion 642-3
Diagnostic criteria and guidelines for hospital admission for suspected myocardial contusion (MCC) remain unclear. This study defines and examines the clinical sequelae of patients admitted with a suspicion of MCC. Criteria for observation following isolated, minor blunt chest trauma are suggested. Hospital and trauma registry records of patients admitted over a 33-month period with suspected MCC were reviewed. Conventional evaluation criteria, cardiac-related complications, and associated injuries were analyzed for 524 patients. Twenty-eight cardiac-related complications occurred in 27 of 524 patients (5%). These complications included 23 dysrhythmias, 3 infarctions, and 2 pericardial effusions. There were 23 patients with abnormal admission electrocardiograms and 4 with normal ones. Of the latter, one patient developed dysrhythmia 4 hours after admission, and three had other major multi-system injuries requiring admission to the intensive care unit. The overall incidence of cardiac-related complications in minimally injured patients was 0.1%. There were no complications in patients with isolated chest wall contusions, a normal admission electrocardiogram, and a normal rhythm at 4 hours. There was no significant association between creatine phosphokinase isoenzymes or echocardiogram and cardiac-related complications. The complete absence of significant cardiac sequelae in patients with isolated chest wall contusion, normal admission and 4-hour electrocardiograms, and no other associated major injuries suggests that these patients need not be admitted. 相似文献
10.