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   3865190篇
  免费   339026篇
  国内免费   14352篇
耳鼻咽喉   53020篇
儿科学   122569篇
妇产科学   100813篇
基础医学   597234篇
口腔科学   107780篇
临床医学   357710篇
内科学   693759篇
皮肤病学   98882篇
神经病学   334205篇
特种医学   154751篇
外国民族医学   510篇
外科学   598355篇
综合类   115501篇
现状与发展   59篇
一般理论   2509篇
预防医学   323697篇
眼科学   90533篇
药学   269305篇
  22篇
中国医学   10359篇
肿瘤学   186995篇
  2021年   57238篇
  2020年   37919篇
  2019年   59767篇
  2018年   76193篇
  2017年   59195篇
  2016年   65381篇
  2015年   79039篇
  2014年   114607篇
  2013年   180776篇
  2012年   110263篇
  2011年   112111篇
  2010年   124517篇
  2009年   128865篇
  2008年   98531篇
  2007年   102617篇
  2006年   113105篇
  2005年   107717篇
  2004年   109367篇
  2003年   99007篇
  2002年   88380篇
  2001年   122111篇
  2000年   115984篇
  1999年   112824篇
  1998年   68500篇
  1997年   65697篇
  1996年   63510篇
  1995年   58977篇
  1994年   52963篇
  1993年   49452篇
  1992年   83388篇
  1991年   79793篇
  1990年   76288篇
  1989年   74900篇
  1988年   69680篇
  1987年   68374篇
  1986年   65150篇
  1985年   65025篇
  1984年   56793篇
  1983年   51488篇
  1982年   44948篇
  1981年   42095篇
  1980年   39659篇
  1979年   49070篇
  1978年   41073篇
  1977年   36872篇
  1976年   34182篇
  1975年   32915篇
  1974年   35605篇
  1973年   34264篇
  1972年   31740篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
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   
52.
53.
54.
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   
55.
56.
57.
58.
59.
60.
Major depressive disorder and other neuropsychiatric disorders are often managed with long-term use of antidepressant medication. Fluoxetine, an SSRI antidepressant, is widely used as a first-line treatment for neuropsychiatric disorders. However, fluoxetine has also been shown to increase the risk of metabolic diseases such as non-alcoholic fatty liver disease. Fluoxetine has been shown to increase hepatic lipid accumulation in vivo and in vitro. In addition, fluoxetine has been shown to alter the production of prostaglandins which have also been implicated in the development of non-alcoholic fatty liver disease. The goal of this study was to assess the effect of fluoxetine exposure on the prostaglandin biosynthetic pathway and lipid accumulation in a hepatic cell line (H4-II-E-C3 cells). Fluoxetine treatment increased mRNA expression of prostaglandin biosynthetic enzymes (Ptgs1, Ptgs2, and Ptgds), PPAR gamma (Pparg), and PPAR gamma downstream targets involved in fatty acid uptake (Cd36, Fatp2, and Fatp5) as well as production of 15-deoxy-Δ12,14PGJ2 a PPAR gamma ligand. The effects of fluoxetine to induce lipid accumulation were attenuated with a PTGS1 specific inhibitor (SC-560), whereas inhibition of PTGS2 had no effect. Moreover, SC-560 attenuated 15-deoxy-Δ12,14PGJ2 production and expression of PPAR gamma downstream target genes. Taken together these results suggest that fluoxetine-induced lipid abnormalities appear to be mediated via PTGS1 and its downstream product 15d-PGJ2 and suggest a novel therapeutic target to prevent some of the adverse effects of fluoxetine treatment.  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