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   4758002篇
  免费   370349篇
  国内免费   14573篇
耳鼻咽喉   66699篇
儿科学   151280篇
妇产科学   125832篇
基础医学   720685篇
口腔科学   130910篇
临床医学   434162篇
内科学   862520篇
皮肤病学   117029篇
神经病学   389562篇
特种医学   185743篇
外国民族医学   689篇
外科学   725359篇
综合类   132607篇
现状与发展   23篇
一般理论   2697篇
预防医学   391766篇
眼科学   113243篇
药学   340991篇
  30篇
中国医学   12859篇
肿瘤学   238238篇
  2021年   56539篇
  2019年   58924篇
  2018年   75253篇
  2017年   57315篇
  2016年   63716篇
  2015年   76209篇
  2014年   110843篇
  2013年   176276篇
  2012年   135497篇
  2011年   143616篇
  2010年   130030篇
  2009年   129845篇
  2008年   129119篇
  2007年   138819篇
  2006年   146282篇
  2005年   141183篇
  2004年   141042篇
  2003年   131171篇
  2002年   120101篇
  2001年   183514篇
  2000年   179963篇
  1999年   162915篇
  1998年   73792篇
  1997年   68807篇
  1996年   67057篇
  1995年   62327篇
  1994年   56293篇
  1993年   52248篇
  1992年   118266篇
  1991年   114220篇
  1990年   110502篇
  1989年   107552篇
  1988年   98876篇
  1987年   97012篇
  1986年   91527篇
  1985年   89307篇
  1984年   73007篇
  1983年   64759篇
  1982年   49715篇
  1981年   46209篇
  1980年   43450篇
  1979年   63938篇
  1978年   50616篇
  1977年   44843篇
  1976年   41447篇
  1975年   42556篇
  1974年   46957篇
  1973年   45094篇
  1972年   42413篇
  1971年   39558篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
51.
52.
IntroductionHip displacement is common in cerebral palsy (CP) and is related to the severity of neurological and functional impairment. It is a silent, but progressive disease, and can result in significant morbidity and decreased quality of life, if left untreated. The pathophysiology of hip displacement in CP is a combination of hip flexor-adductor muscle spasticity, abductor muscle weakness, and delayed weight-bearing, resulting in proximal femoral deformities and progressive acetabular dysplasia. Due to a lack of symptoms in the early stages of hip displacement, the diagnosis is easily missed. Awareness of this condition and regular surveillance by clinical examination and serial radiographs of the hips are the key to early diagnosis and treatment.Hip surveillance programmesSeveral population-based studies from around the world have demonstrated that universal hip surveillance in children with CP allows early detection of hip displacement and appropriate early intervention, with a resultant decrease in painful dislocations. Global hip surveillance models are based upon the patients’ age, functional level determined by the Gross Motor Function Classification system (GMFCS), gait classification, standardized clinical exam, and radiographic indices such as the migration percentage (MP), as critical indicators of progressive hip displacement.ConclusionDespite 25 years of evidence showing the efficacy of established hip surveillance programmes, there is poor awareness among healthcare professionals in India about the importance of regular hip surveillance in children with CP. There is a need for professional organizations to develop evidence-based guidelines for hip surveillance which are relevant to the Indian context.  相似文献   
53.
54.
55.
Inflammatory bowel disease (IBD) is a chronic disease that requires chronic treatment throughout the evolution of the disease, with a complex physiopathology that entails great challenges for the development of new and specific treatments for ulcerative colitis and Crohn´s disease. The anti-tumor necrosis factor alpha therapy has impacted the clinical course of IBD in those patients who do not respond to conventional treatment, so there is a need to develop new therapies and markers of treatment response. Various pathways involved in the development of the disease are known and the new therapies have focused on blocking the inflammatory process at the gastrointestinal level by oral, intravenous, subcutaneous, and topical route. All these new therapies can lead to more personalized treatments with higher success rates and fewer relapses. These treatments have not only focused on clinical remission, but also on achieving macroscopic changes at the endoscopic level and microscopic changes by achieving mucosal healing. These treatments are mainly based on modifying signaling pathways, by blocking receptors or ligands, reducing cell migration and maintaining the integrity of the epithelial barrier. Therefore, this review presents the efficacy and safety of the new treatments that are currently under study and the advances that have been made in this area in recent years.  相似文献   
56.
57.
Abstract

Purpose

Financial hardship can be a major cause of distress among persons with cancer, resulting in chronic stress and impacting physical and emotional health. This paper provides an analysis of the lived experience of cancer patients’ financial hardship from diagnosis to post-treatment.  相似文献   
58.
59.
60.
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