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   903篇
  免费   6篇
儿科学   3篇
妇产科学   2篇
基础医学   9篇
口腔科学   8篇
临床医学   77篇
内科学   26篇
皮肤病学   86篇
神经病学   260篇
外科学   285篇
预防医学   4篇
眼科学   14篇
药学   7篇
肿瘤学   128篇
  2021年   2篇
  2018年   1篇
  2017年   2篇
  2016年   2篇
  2015年   5篇
  2014年   9篇
  2013年   10篇
  2012年   7篇
  2011年   24篇
  2010年   157篇
  2009年   279篇
  2008年   134篇
  2007年   17篇
  2006年   15篇
  2005年   9篇
  2004年   20篇
  2003年   17篇
  2002年   4篇
  2001年   6篇
  2000年   2篇
  1999年   1篇
  1998年   14篇
  1997年   76篇
  1995年   29篇
  1994年   3篇
  1993年   2篇
  1992年   3篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1987年   13篇
  1985年   1篇
  1975年   2篇
  1968年   1篇
  1967年   9篇
  1966年   10篇
  1965年   5篇
  1964年   1篇
  1962年   1篇
  1961年   7篇
  1960年   1篇
  1958年   2篇
  1957年   1篇
  1956年   2篇
排序方式: 共有909条查询结果,搜索用时 15 毫秒
31.
32.
Aim of this study was to evaluate the economic impact of the introduction of positron emission tomography/computed tomography (PET/CT) in the early detection of recurrent ovarian cancer through a cost-effectiveness analysis of different diagnostic strategies. Thirty-two consecutive patients with suspected ovarian cancer recurrence, studied by both contrast enhanced abdominal CT and PET/CT, were retrospectively included in the study. Three different diagnostic strategies were evaluated and compared: (1) CT only or baseline strategy; (2) PET/CT for negative CT or strategy A; (3) PET/CT for All or strategy B. For each one, expected costs, avoided surgery and incremental cost-effectiveness ratio (ICER) were calculated to identify the most cost-effective strategy. The number of positive patients increased from baseline strategy (20/32) to strategy A and B (30/32 and 29/32 respectively). Positron emission tomography/computed tomography reoriented physician choice in 31% and 62% of patients (strategies A and B respectively). Strategy A is dominated by strategy B, which is more expensive (2909€ vs. 2958€), but also more effective (3 cases of surgery avoided) and presents an ICER of 226.77€ per surgery avoided (range: 49.50–433.00€). Positron emission tomography/computed tomography introduction in this population is cost-effective and allowed to redirect the clinical management of patients towards more appropriate therapeutic choices.  相似文献   
33.
34.
35.
36.
37.
38.
39.
Failure to attend medical appointments (No Show) and loss to follow-up (LTFU) among patients with cancer can adversely affect their treatment and eventual outcome. In a 3-year prospective study of 199 patients with malignant lymphoma, all of those with No Shows were contacted, and reasons given for No Shows were categorized. Of the 340 No Shows, 34.1% were due to hospital-based communication problems, 17.6% to errors in patient communication with the hospital, 7.4% to transportation problems and 16.5% to other personal reasons. Almost one quarter (24.4%) of the patients were not contactable. Reasons for No Show in all categories were instructive as to patients' attitudes to treatment. Nineteen (12.2%) of the 156 patients who had not died in the 3-year follow-up period were identified as LTFU. These 19 LTFU patients accounted for 77 (22.6%) of all No Shows. The data indicate that LTFU in this cohort is significantly less frequent than in a prior cohort followed up for 3 years from 1997 to 1998. These findings suggest that some causes of No Show can be addressed, and individuals are identified as at particular risk for No Show and ultimately LTFU. This study points out that pre-emptive strategies to reduce No Shows may be feasible and efficacious.  相似文献   
40.
Before electronic records become operational, patient-held records provide an opportunity to improve communication between patients and healthcare professionals. Our aim was to design the appropriate organization, layout and content for such a shared record for breast cancer management, based on a consensus between the various stakeholders. We therefore conducted a Delphi study within a working group of 48 members, including patients, oncologists, general practitioners, nurses and other professionals. The procedure featured three rounds during which participants' judgements were collected via mailed questionnaires and quantitative and qualitative feedback was provided on a regular basis. These three rounds were followed by an evaluation phase. Forty members (83%) participated in the three rounds. According to the agreement reached, the shared record was expected to include a front summary card, four sections for groups of users authorized to write down or insert information in the record (patient, physicians, medical auxiliaries and other healthcare professionals), and one section for medical imaging files. In addition, the record was to include specific categories of information as subsections within each of the various user sections. The participant satisfaction rate was over 90% for all aspects of the procedure, with the exception of interaction within the working group (79%).  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