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   3302424篇
  免费   278980篇
  国内免费   13463篇
耳鼻咽喉   44931篇
儿科学   102751篇
妇产科学   84108篇
基础医学   530233篇
口腔科学   89216篇
临床医学   297740篇
内科学   575888篇
皮肤病学   90591篇
神经病学   281393篇
特种医学   131231篇
外国民族医学   225篇
外科学   512965篇
综合类   100243篇
现状与发展   23篇
一般理论   2200篇
预防医学   271886篇
眼科学   75974篇
药学   232911篇
  24篇
中国医学   9974篇
肿瘤学   160360篇
  2021年   55163篇
  2020年   35218篇
  2019年   58106篇
  2018年   71051篇
  2017年   53856篇
  2016年   59569篇
  2015年   73739篇
  2014年   108056篇
  2013年   173241篇
  2012年   88868篇
  2011年   88054篇
  2010年   115836篇
  2009年   120553篇
  2008年   74753篇
  2007年   77311篇
  2006年   88308篇
  2005年   83273篇
  2004年   85063篇
  2003年   76089篇
  2002年   65748篇
  2001年   107130篇
  2000年   99952篇
  1999年   98877篇
  1998年   65032篇
  1997年   62835篇
  1996年   60611篇
  1995年   56165篇
  1994年   50054篇
  1993年   46808篇
  1992年   68032篇
  1991年   64380篇
  1990年   61430篇
  1989年   60564篇
  1988年   55533篇
  1987年   54009篇
  1986年   51216篇
  1985年   50946篇
  1984年   46669篇
  1983年   42694篇
  1982年   40779篇
  1981年   38384篇
  1980年   36318篇
  1979年   37673篇
  1978年   33366篇
  1977年   31347篇
  1976年   28149篇
  1975年   27040篇
  1974年   27211篇
  1973年   26181篇
  1972年   24577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