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   3548篇
  免费   270篇
  国内免费   129篇
耳鼻咽喉   81篇
儿科学   46篇
妇产科学   60篇
基础医学   609篇
口腔科学   23篇
临床医学   193篇
内科学   472篇
皮肤病学   50篇
神经病学   90篇
特种医学   48篇
外科学   377篇
综合类   232篇
预防医学   121篇
眼科学   15篇
药学   239篇
  1篇
中国医学   8篇
肿瘤学   1282篇
  2024年   8篇
  2023年   172篇
  2022年   318篇
  2021年   361篇
  2020年   303篇
  2019年   252篇
  2018年   209篇
  2017年   199篇
  2016年   152篇
  2015年   122篇
  2014年   156篇
  2013年   154篇
  2012年   142篇
  2011年   152篇
  2010年   126篇
  2009年   114篇
  2008年   104篇
  2007年   136篇
  2006年   115篇
  2005年   102篇
  2004年   80篇
  2003年   72篇
  2002年   53篇
  2001年   43篇
  2000年   50篇
  1999年   29篇
  1998年   27篇
  1997年   38篇
  1996年   22篇
  1995年   33篇
  1994年   22篇
  1993年   15篇
  1992年   9篇
  1991年   6篇
  1990年   9篇
  1989年   7篇
  1988年   3篇
  1987年   4篇
  1986年   4篇
  1985年   3篇
  1983年   1篇
  1982年   7篇
  1981年   4篇
  1980年   3篇
  1979年   1篇
  1977年   3篇
  1976年   1篇
  1974年   1篇
排序方式: 共有3947条查询结果,搜索用时 15 毫秒
141.
Bladder cancer is the second most common urological cancer in the UK, with over 10 000 cases diagnosed annually. With 80% of urothelial bladder cancers being non‐muscle invasive, it is important to understand the treatments available. This review aims to identify and review the literature regarding bacillus Calmette‐Guerin (BCG) treatment. An integrative‐based review was conducted to generate a broad overview of the existing knowledge for BCG treatment. An open search of online databases was conducted to identify articles published in English from the earliest date available to September 2013, using key terms related to BCG. A significant number of articles were identified. To narrow the results and identify the most relevant articles, the search terms were cross‐referenced. The resulting articles were then reviewed using the critical appraisal skills programme framework. The tools provided by CASP give a systematic, transparent and rigorous approach to the quality assessment of research studies. The research articles were then categorized under the following headings: side effects, including local, systemic and age; quality of life; and attrition. The major conclusion from this literature review is that BCG treatment, when given through an induction and maintenance regime, significantly reduces the risk of progression and recurrence. However, there are potential side effects which the patient and the nurse need to be aware. This review also highlighted that there is a lack of research from the UK and that there is a paucity of research showing why patients withdraw from BCG treatment  相似文献   
142.
143.
桥本甲状腺炎是一种器官特异性免疫疾病,属于自身免疫性甲状腺病的一种,其发病率逐年升高,是原发性甲状腺功能减退症的主要原因之一,其发病机制尚不明确,目前治疗方案主要为甲状腺激素替代及对症治疗,但其并不能遏制疾病本身进展,最终导致永久性甲状腺功能减退。一些学者在不断尝试免疫治疗、基因治疗等方法,以期达到病因治疗,从而阻止其对机体的进一步损伤亦或治愈本病。随着检测技术的不断发展,病因治疗将成为今后学者的研究方向。  相似文献   
144.
145.
146.
The use of immunoglobulin (Ig) preparations (intravenous, IVIg, subcutaneous, SCIg) for replacement and immunomodulation therapy worldwide has tripled in the past 20 years and represents an ever‐increasing cost factor for healthcare organizations. The limited access to the starting material of this essential medicinal product is currently the driving force for human plasma collection. Increasing awareness and improved diagnosis of human primary immunodeficiencies and a broadening of immunomodulatory indications are responsible for this development, and on a longer run might lead to plasma supply shortages. Consensus recommendations for the optimal use of Ig in clinical practice, including priority rankings for the most urgent indications, are therefore urgently needed. During a recent meeting in Kreuth, Germany, expert nominees from 36 Council of Europe states, together with colleagues from observer countries and regulatory agencies came up with this consensus statement.

  相似文献   

147.
148.
149.
Objective:To observe the effect of co-culture cytokine-induced killer cells(CIK) and homologous dendritic cells(DC) on the proliferative activity and phenotype change of the DCCIK cell and the cell killing activity of leukemia HL-60.Methods:50 mL cord blood sample was obtained from infants delivered by full term healthy woman and the cord blood mononuclear cells were isolated by density gradient centrifugal ion.Non-adherent cells were collectedfor the induction culture of CIK.adherent cells were differentiated into mature DC;cultured mature DC was mixed with and CIK in the proportion of 1:5 for 12 d.killing activity of DC-CIK co-cultured cell on leukemia HL-60 was detected by MTT assay.Results:Compared with CIKs.the cocultured DC-CIKs presented a markedly higher proliferation and killing activity.Conclusions:Co-culture of DC-CIK cells led to a significant increase of the proliferation and cytotoxicity of CIK.  相似文献   
150.
膀胱癌是泌尿生殖系统常见的恶性肿瘤,中、高危非肌层浸润性膀胱癌的标准治疗方式为单纯经尿道膀胱肿瘤切除术+膀胱灌注治疗。在众多膀胱灌注药物中,BCG膀胱灌注以其明显的抗肿瘤疗效得到广泛使用。但部分高危患者即使进行了BCG标准灌注治疗,仍会发生膀胱癌复发和/或进展,且后续可供选择的治疗方式很少。近几年随着肿瘤免疫学研究的进展,新型免疫治疗药物的开发为膀胱癌的治疗带来了重大突破。此文对非肌层浸润性膀胱癌TURBT术后BCG等免疫调节剂膀胱灌注及其失败后的免疫治疗方法进行综述。  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