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   3020437篇
  免费   263335篇
  国内免费   13334篇
耳鼻咽喉   41455篇
儿科学   95488篇
妇产科学   76033篇
基础医学   495763篇
口腔科学   81359篇
临床医学   272535篇
内科学   521696篇
皮肤病学   85024篇
神经病学   258449篇
特种医学   118470篇
外国民族医学   100篇
外科学   473600篇
综合类   94129篇
现状与发展   23篇
一般理论   2114篇
预防医学   253902篇
眼科学   69400篇
药学   205732篇
  20篇
中国医学   9725篇
肿瘤学   142089篇
  2021年   54742篇
  2020年   34994篇
  2019年   57880篇
  2018年   70323篇
  2017年   53201篇
  2016年   58586篇
  2015年   73100篇
  2014年   107211篇
  2013年   172174篇
  2012年   80497篇
  2011年   78775篇
  2010年   113723篇
  2009年   118722篇
  2008年   66076篇
  2007年   67677篇
  2006年   78987篇
  2005年   74207篇
  2004年   76547篇
  2003年   67551篇
  2002年   57654篇
  2001年   85274篇
  2000年   77207篇
  1999年   80658篇
  1998年   63073篇
  1997年   61303篇
  1996年   59010篇
  1995年   54542篇
  1994年   48715篇
  1993年   45487篇
  1992年   54411篇
  1991年   52236篇
  1990年   49305篇
  1989年   49476篇
  1988年   45743篇
  1987年   44507篇
  1986年   42312篇
  1985年   42840篇
  1984年   41116篇
  1983年   38215篇
  1982年   38942篇
  1981年   36986篇
  1980年   34971篇
  1979年   32889篇
  1978年   30822篇
  1977年   28653篇
  1976年   26297篇
  1975年   24913篇
  1974年   24673篇
  1973年   23539篇
  1972年   22018篇
排序方式: 共有10000条查询结果,搜索用时 296 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