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   1434篇
  免费   72篇
  国内免费   7篇
耳鼻咽喉   31篇
儿科学   83篇
妇产科学   25篇
基础医学   136篇
口腔科学   35篇
临床医学   98篇
内科学   360篇
皮肤病学   15篇
神经病学   91篇
特种医学   42篇
外科学   293篇
综合类   26篇
预防医学   55篇
眼科学   87篇
药学   81篇
中国医学   2篇
肿瘤学   53篇
  2023年   6篇
  2022年   25篇
  2021年   55篇
  2020年   33篇
  2019年   38篇
  2018年   43篇
  2017年   33篇
  2016年   36篇
  2015年   35篇
  2014年   58篇
  2013年   62篇
  2012年   82篇
  2011年   106篇
  2010年   50篇
  2009年   48篇
  2008年   63篇
  2007年   64篇
  2006年   85篇
  2005年   59篇
  2004年   62篇
  2003年   39篇
  2002年   53篇
  2001年   50篇
  2000年   47篇
  1999年   50篇
  1998年   17篇
  1997年   13篇
  1996年   8篇
  1995年   12篇
  1994年   6篇
  1992年   6篇
  1991年   12篇
  1990年   9篇
  1989年   7篇
  1988年   9篇
  1987年   7篇
  1986年   5篇
  1985年   8篇
  1984年   12篇
  1979年   6篇
  1978年   5篇
  1977年   6篇
  1975年   5篇
  1974年   8篇
  1973年   13篇
  1972年   6篇
  1971年   6篇
  1970年   6篇
  1969年   11篇
  1967年   5篇
排序方式: 共有1513条查询结果,搜索用时 15 毫秒
991.
992.
Angiotensin-converting enzyme inhibitors (ACE-I) were initially developed as therapeutic agents targeted for the treatment of hypertension. Since the initial application of these agents, several additional clinical indications have been identified such as coronary artery disease, stroke, congestive heart failure and prevention of diabetes-related complications. In addition to the blood pressure lowering effects, this class of agents has the ability to restore endothelial function, decrease oxidative stress and enhance endogenous fibrinolysis. Moreover, ACE-I possesses antiplatelet effects as well as antiproliferatory and antimigratory effects on smooth muscle cells. This article links the effects of ACE-I on thrombotic mediators to the potential clinical implications in the setting of coronary artery disease.  相似文献   
993.
994.
995.
996.
A consensus conference on frailty in solid organ transplantation took place on February 11, 2018, to discuss the latest developments in frailty, adopt a standardized approach to assessment, and generate ideas for future research. The findings and consensus of the Frailty Heart Workgroup (American Society of Transplantation's Thoracic and Critical Care Community of Practice) are presented here. Frailty is defined as a clinically recognizable state of increased vulnerability resulting from aging-associated decline in reserve and function across multiple physiologic systems such that the ability to cope with every day or acute stressors is compromised. Frailty is increasingly recognized as a distinct biologic entity that can adversely affect outcomes before and after heart transplantation. A greater proportion of patients referred for heart transplantation are older and have more complex comorbidities. However, outcomes data in the pretransplant setting, particularly for younger patients, are limited. Therefore, there is a need to develop objective frailty assessment tools for risk stratification in patients with advanced heart disease. These tools will help to determine appropriate recipient selection for advanced heart disease therapies including heart transplantation and mechanical circulatory support, improve overall outcomes, and help distinguish frailty phenotypes amenable to intervention.  相似文献   
997.
998.
? Various techniques involving skin grafts have been described to obtain thin hairless immobile skin at the abutment interface of the bone‐anchored hearing aid (BAHA), but none are without significant complications such as necrosis and/or infection leading to total graft failure. ? A novel technique involving four local thin skin flaps was developed to prevent serious complications. ? The procedure essentially involves raising skin flaps at the intradermal level leaving the hair follicles in the subcutaneous tissue, which is subsequently excised. ? We have used the skin‐flap approach around 21 BAHAs on 19 patients (two patients had bilateral devices) and the only complications were minor skin loss immediately adjacent to the implants in two patients and mild skin infections, which settled with topical antibiotics, in three patients. ? The innovative technique described is simple and straightforward, and does not require any special instrumentation. Furthermore, it may have specific advantages, in terms of morbidity, over contemporary skin grafting methods primarily because of the retained intrinsic blood supply of the skin flaps.  相似文献   
999.
1000.
Parents usually give the history of symptoms to us whenever a child is brought to us. Child is neither asked about his symptom nor his feelings related to the problem by most of jus. This paradox often results into resentment by the child biaking our examination more difficult. History given by a child often differs from that given by his parents. More than treating the Paediatric patients by medicines and surgery by special approach, technique or equipments, it is the understanding the Psychology of the children complaining of symptoms or suffering from a disease makes an ENT specialist a Paediatric ENT specialist. Child Psychology for paediatric ENT disorders are neither found in any book. One learns by keeping the eyes and ears open, by constant observation and analysis and from the experience of seniors.  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