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   3035742篇
  免费   264030篇
  国内免费   13363篇
耳鼻咽喉   41575篇
儿科学   96023篇
妇产科学   76383篇
基础医学   497480篇
口腔科学   81578篇
临床医学   274077篇
内科学   525009篇
皮肤病学   85327篇
神经病学   259689篇
特种医学   118797篇
外国民族医学   100篇
外科学   475465篇
综合类   94409篇
现状与发展   23篇
一般理论   2142篇
预防医学   255782篇
眼科学   69714篇
药学   206586篇
  22篇
中国医学   9736篇
肿瘤学   143218篇
  2022年   22258篇
  2021年   54794篇
  2020年   35036篇
  2019年   57952篇
  2018年   70420篇
  2017年   53304篇
  2016年   58682篇
  2015年   73190篇
  2014年   107310篇
  2013年   172382篇
  2012年   81331篇
  2011年   79868篇
  2010年   114064篇
  2009年   118966篇
  2008年   67106篇
  2007年   68814篇
  2006年   80059篇
  2005年   75280篇
  2004年   77553篇
  2003年   68532篇
  2002年   58604篇
  2001年   85418篇
  2000年   77336篇
  1999年   80797篇
  1998年   63151篇
  1997年   61360篇
  1996年   59065篇
  1995年   54590篇
  1994年   48776篇
  1993年   45546篇
  1992年   54544篇
  1991年   52359篇
  1990年   49434篇
  1989年   49598篇
  1988年   45828篇
  1987年   44573篇
  1986年   42397篇
  1985年   42926篇
  1984年   41173篇
  1983年   38264篇
  1982年   38987篇
  1981年   37029篇
  1980年   35006篇
  1979年   32967篇
  1978年   30857篇
  1977年   28680篇
  1976年   26335篇
  1975年   24961篇
  1974年   24724篇
  1973年   23591篇
排序方式: 共有10000条查询结果,搜索用时 15 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