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   1266316篇
  免费   74289篇
  国内免费   1373篇
耳鼻咽喉   16440篇
儿科学   41390篇
妇产科学   32024篇
基础医学   174302篇
口腔科学   31175篇
临床医学   107832篇
内科学   237542篇
皮肤病学   25277篇
神经病学   99062篇
特种医学   52397篇
外国民族医学   201篇
外科学   196088篇
综合类   24398篇
现状与发展   1篇
一般理论   263篇
预防医学   93176篇
眼科学   27358篇
药学   96591篇
  7篇
中国医学   3443篇
肿瘤学   83011篇
  2019年   7849篇
  2018年   34046篇
  2017年   27124篇
  2016年   31328篇
  2015年   12370篇
  2014年   16237篇
  2013年   23131篇
  2012年   37662篇
  2011年   54068篇
  2010年   38085篇
  2009年   29959篇
  2008年   51223篇
  2007年   56730篇
  2006年   33421篇
  2005年   34047篇
  2004年   34207篇
  2003年   34666篇
  2002年   31336篇
  2001年   60475篇
  2000年   62204篇
  1999年   51221篇
  1998年   12742篇
  1997年   11342篇
  1996年   11204篇
  1995年   10524篇
  1994年   9553篇
  1993年   9032篇
  1992年   37921篇
  1991年   36453篇
  1990年   35929篇
  1989年   34430篇
  1988年   31001篇
  1987年   30125篇
  1986年   28317篇
  1985年   26564篇
  1984年   19263篇
  1983年   16193篇
  1982年   8923篇
  1979年   17125篇
  1978年   11474篇
  1977年   10246篇
  1976年   8907篇
  1975年   10073篇
  1974年   11691篇
  1973年   11280篇
  1972年   10754篇
  1971年   10092篇
  1970年   9289篇
  1969年   8981篇
  1968年   7947篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Quality of Life Research - The COVID-19 pandemic might add to the stressors experienced by people living with rheumatic diseases. This study aimed to examine rheumatic patients’ functional...  相似文献   
3.
Molnár  B.  Aroca  S.  Dobos  A.  Orbán  K.  Szabó  J.  Windisch  P.  Stähli  A.  Sculean  A. 《Clinical oral investigations》2022,26(12):7135-7142
Clinical Oral Investigations - To evaluate t he long-term outcomes following treatment of RT 1 multiple adjacent gingival recessions (MAGR) using the modified coronally advanced tunnel (MCAT) with...  相似文献   
4.
5.
6.
7.
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   
8.
9.
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   
10.
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