首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   250篇
  免费   6篇
  国内免费   1篇
耳鼻咽喉   5篇
儿科学   11篇
妇产科学   9篇
基础医学   31篇
口腔科学   28篇
临床医学   13篇
内科学   51篇
皮肤病学   2篇
神经病学   7篇
特种医学   7篇
外科学   29篇
综合类   8篇
预防医学   12篇
眼科学   12篇
药学   17篇
肿瘤学   15篇
  2023年   4篇
  2022年   5篇
  2021年   28篇
  2020年   10篇
  2019年   7篇
  2018年   12篇
  2017年   7篇
  2016年   16篇
  2015年   11篇
  2014年   17篇
  2013年   12篇
  2012年   26篇
  2011年   21篇
  2010年   10篇
  2009年   7篇
  2008年   12篇
  2007年   6篇
  2006年   8篇
  2005年   4篇
  2004年   2篇
  2003年   1篇
  2002年   3篇
  2001年   3篇
  2000年   2篇
  1999年   2篇
  1997年   1篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1983年   2篇
  1982年   2篇
  1981年   1篇
  1968年   1篇
排序方式: 共有257条查询结果,搜索用时 0 毫秒
101.
This study aimed to understand the knowledge, attitudes and confidence level related to critical congenital heart disease (CCHD) screening among pediatric residents. Pediatric residents were assessed via an anonymous survey related to CCHD guidelines and procedures as set out by the New York State Department of Health. The survey was emailed to pediatric residents at a large academic institution. A teaching intervention was performed after the initial survey, which was followed by an identical after-intervention survey. Forty-two residents responded to the pre-intervention survey (n = 42), and forty post-intervention (n = 40). The mean composite knowledge score was 76 % pre-intervention and 92 % post-intervention, p < .001. Pre-intervention only 12 % of the respondents could answer all the questions correctly which increased to 60 % post-intervention. Confidence among residents regarding guidelines increased from 38 to 95 % post-intervention, p < .001. There was a positive correlation between the residents who felt confident of the guidelines and who answered correctly, r = .514, p < .001, n = 82. There was no significant difference between knowledge, attitudes or confidence level scores by year of training or the gender of the residents. Our study demonstrated a significant gap of knowledge among residents related to CCHD screening mandated by New York State health law. There was also a corresponding lack of confidence demonstrated by the residents in the guidelines. These data suggest that residents would benefit from further education on the proper implementation of a CCHD screening program. Further multicenter studies are warranted to assess similar gaps in other residency training programs in New York and wherever these screenings guidelines have been adopted.  相似文献   
102.

Purpose

The aim of this study was to demonstrate the lower limb alignment in knee flexion position after navigation-assisted total knee arthroplasty using the gap technique and to identify the correlative factors.

Methods

One hundred and twenty consecutive osteoarthritic knees (120 patients) were prospectively enrolled for intraoperative data collection. All TKA surgeries were performed using the navigation system (OrthoPilot?, version 4.0; B. Braun Aesculap, Tuttlingen, Germany). Before and after final prosthesis implantation, the lower limb navigation alignment in both knee extension (0°) and knee flexion (90°) position was recorded. The knee flexion alignment was divided into three groups: varus, neutral and valgus alignment. To determine the factors of the alignment in knee flexion position, preoperative demographics, radiologic and intraoperative data were obtained. Pearson’s correlation (r) analysis was performed to find the correlation. The Knee Society Score and Western Ontario and McMaster Universities Osteoarthritis Index were compared between groups.

Results

Although all postoperative extension alignment was within neutral position (between ?2° and +2°), postoperative knee flexion alignment was divided into three groups: varus (≤?3°), 24 cases (20 %); neutral (between ?2° and +2°), 85 cases (70.8 %) and valgus (≥+3°) alignment, 11 cases (9.2 %). There were a good correlation of alignment in knee flexion position with the rotation of femoral component relative to posterior condylar axis (r = ?0.502, p = 0.000) and weak correlations with posterior femoral cut thickness (lateral condyle) (r = 0.207, p = 0.026), medial flexion (90°) gap after femoral component rotation adjustment (r = 0.276, p = 0.003). Other variables did not show correlations. There were no statistical clinical differences between varus, neutral and valgus knee flexion alignment groups.

Conclusion

About 30 % of the cases showed malalignment of more than 3° in knee flexion position although with neutral alignment in extension position. The knee flexion alignment had a good correlation with the rotation of femoral component relative to posterior condylar axis. Neutral alignment in knee flexion position may be adjusted by femoral component rotation especially by the use of navigation system.

Level of evidence

IV.
  相似文献   
103.
104.
105.
106.
107.
108.
109.
Torture is taking place since time immemorial. Doctors can take important part in elimination of this social evil. Torture is deliberate, systematic or wanton infliction of physical or mental suffering by one or more persons to force another person or torture victim to make confession or giving information. Torture happens to occur in 3 forms--physical, mental and/or sexual. Doctors working in prisons, police or paramilitary/military forces are most likely to confront with torture and they should follow the medical ethics, codes and conventions in true sense. MCI, IMA, WMA should play their role in educating, motivating and supporting doctors in confronting torture. NHRC and IMA should co-operate each other to protect human rights.  相似文献   
110.
The interferons are a complex group of virally induced proteins produced by activated macrophages and lymphocytes, which have become the mainstay of therapy for hepatitis C infection. Sustained viral response (SVR) rates in noncirrhotic patients vary from 40–80% with interferon-based therapy. This, along with transplantation, has drastically changed the course of hepatitis C virus (HCV) infection over the last two decades. Numerous side effects associated with interferon therapy have been reported. These range from transient flu-like symptoms to serious effects such as cardiac arrhythmias, cardiomyopathy, renal and liver failure, polyneuropathy, and myelosuppression. Pulmonary side effects including pneumonitis, pulmonary fibrosis, and reversible pulmonary hypertension have been reported. Herein, we present four cases in which irreversible pulmonary hypertension was diagnosed after prolonged treatment with interferon alpha. In each case, other causes of pulmonary hypertension were systematically eliminated. Pulmonary artery hypertension, which may be irreversible, should be considered in patients being treated with interferon alpha who present with exertional dyspnea and do not have a readily identifiable inflammatory or thromboembolic cause.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号