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   1597961篇
  免费   125123篇
  国内免费   4185篇
耳鼻咽喉   20824篇
儿科学   51986篇
妇产科学   44945篇
基础医学   227726篇
口腔科学   42060篇
临床医学   141738篇
内科学   324237篇
皮肤病学   38104篇
神经病学   133736篇
特种医学   59365篇
外国民族医学   561篇
外科学   234388篇
综合类   34679篇
现状与发展   8篇
一般理论   538篇
预防医学   127789篇
眼科学   35388篇
药学   112597篇
  2篇
中国医学   4238篇
肿瘤学   92360篇
  2021年   14002篇
  2019年   14989篇
  2018年   22711篇
  2017年   16752篇
  2016年   18379篇
  2015年   20621篇
  2014年   27431篇
  2013年   40985篇
  2012年   58869篇
  2011年   61428篇
  2010年   34860篇
  2009年   32027篇
  2008年   55900篇
  2007年   59240篇
  2006年   58764篇
  2005年   57158篇
  2004年   54318篇
  2003年   51386篇
  2002年   49292篇
  2001年   76932篇
  2000年   78635篇
  1999年   65222篇
  1998年   17729篇
  1997年   16068篇
  1996年   16168篇
  1995年   15309篇
  1994年   13855篇
  1993年   12983篇
  1992年   48011篇
  1991年   45414篇
  1990年   43355篇
  1989年   41286篇
  1988年   37881篇
  1987年   36928篇
  1986年   34405篇
  1985年   32669篇
  1984年   24867篇
  1983年   20923篇
  1982年   12730篇
  1981年   11204篇
  1979年   21613篇
  1978年   15236篇
  1977年   12723篇
  1976年   11871篇
  1975年   12263篇
  1974年   14785篇
  1973年   14353篇
  1972年   13382篇
  1971年   12193篇
  1970年   11595篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.

Background

Refractory acute myeloid leukemia (AML) includes AML includes failure of disease to respond to standard induction chemotherapy, relapse within 6 months after first CR, and 2 or more relapses. The outcome of these patients is usually very poor; only a small proportion can be rescued by allogenic hematopoietic stem-cell transplantation (allo-HSCT). The aim of this study was to evaluate the efficacy and feasibility of allo-HSCT in patients with refractory AML.

Patients and Methods

We retrospectively analyzed the clinical outcome of 91 patients who were diagnosed with treatment-refractory AML at Hacettepe University Hospital between January 2002 and June 2018. Patients' disease status included refractory AML, defined as failure to respond to standard induction chemotherapy and relapse within 6 months after first complete remission.

Results

The median follow-up was 12 months (range, 0.5-184 months) for the entire group. Kaplan-Meier estimates of the 3-year overall survival for patients who underwent allo-HSCT and patients who received only salvage chemotherapy were 67% and 12%, respectively. Additionally, the Kaplan-Meier estimates of 5-year overall survival for patients who underwent allo-HSCT and patients who received only salvage chemotherapy were 44% and 4%, respectively (P < .001). Complete remission was obtained in 25 patients (83.3%) who underwent allo-HSCT; however, the disease of only 3 patients (3.8%) exhibited complete response after salvage chemotherapy.

Conclusion

Allo-HSCT is still the best-known treatment option with curative potential in patients with treatment-refractory AML. Therefore, all efforts should be made in an attempt to find a suitable matched donor in order to perform allo-HSCT.  相似文献   
102.
103.
104.
105.
106.
Guidelines and consensus on the management of patients with acne aim to give evidence-based, expert-group recommendations. This review compares current guidelines and consensus articles to provide a compilation of recommendations on the treatment of acne with oral isotretinoin. Ten common, relevant, clinical questions are addressed, based on published recommendations, including the indications of isotretinoin, the proposed daily dose, the cumulative isotretinoin dose and the laboratory monitoring needed. Recommendations on special considerations are also addressed, including the timing of procedures and the question of an association of depression or inflammatory bowel disease with isotretinoin. A major limitation is the use of different classification systems for acne across guidelines. The recommended daily dose ranges from 0.3 to 0.5 mg/kg in the European guidelines to up to 1 mg/kg in the US guidelines. A specific duration of treatment of at least 6 months is only recommended in the European guidelines. All guidelines report the need of strict pregnancy prevention measures. The European, French and US guidelines recommend to monitor for symptoms of depression. Important clinical questions that are inconsistently addressed in guidelines include the age indication, the recommendation for a cumulative dose, the timing of procedures, the association of isotretinoin with IBD, the recommendation for preventing acne flares and for appropriate laboratory monitoring. These topics should be clearly included in the recommendations of guidelines as they are often raised in everyday clinical practice.  相似文献   
107.
108.
109.
110.
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