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   3244931篇
  免费   230866篇
  国内免费   5125篇
耳鼻咽喉   45030篇
儿科学   104473篇
妇产科学   86269篇
基础医学   470110篇
口腔科学   89103篇
临床医学   295168篇
内科学   623651篇
皮肤病学   71160篇
神经病学   257536篇
特种医学   124496篇
外国民族医学   688篇
外科学   489307篇
综合类   64953篇
现状与发展   14篇
一般理论   1179篇
预防医学   247496篇
眼科学   76102篇
药学   246216篇
  19篇
中国医学   6769篇
肿瘤学   181183篇
  2021年   27348篇
  2019年   27669篇
  2018年   38101篇
  2017年   28865篇
  2016年   32517篇
  2015年   36574篇
  2014年   51508篇
  2013年   76619篇
  2012年   106129篇
  2011年   112694篇
  2010年   66699篇
  2009年   62773篇
  2008年   105182篇
  2007年   112083篇
  2006年   112777篇
  2005年   109351篇
  2004年   104674篇
  2003年   100478篇
  2002年   97035篇
  2001年   147282篇
  2000年   151096篇
  1999年   127369篇
  1998年   37356篇
  1997年   32718篇
  1996年   32794篇
  1995年   30839篇
  1994年   28319篇
  1993年   26755篇
  1992年   97665篇
  1991年   94990篇
  1990年   93006篇
  1989年   89467篇
  1988年   82010篇
  1987年   80377篇
  1986年   75506篇
  1985年   72055篇
  1984年   53571篇
  1983年   45574篇
  1982年   27013篇
  1979年   48794篇
  1978年   34459篇
  1977年   29310篇
  1976年   27315篇
  1975年   29774篇
  1974年   35270篇
  1973年   33718篇
  1972年   31828篇
  1971年   30072篇
  1970年   27681篇
  1969年   26470篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
The coronavirus disease 2019 (COVID-19) pandemic has rapidly created widespread impacts on global health and the economy. Data suggest that women are less susceptible to severe illness. However, sex-disaggregated data are incomplete, leaving room for misinterpretation, and focusing only on biologic sex underestimates the gendered impact of the pandemic on women. This narrative review summarizes what is known about gender disparities during the COVID-19 pandemic and the economic, domestic, and health burdens along with overlapping vulnerabilities related to the pandemic. In addition, this review outlines recommended strategies that advocacy groups, community leaders, and policymakers should implement to mitigate the widening gender disparities related to COVID-19.  相似文献   
13.
14.
15.
16.
Immunoglobulin light chain amyloidosis (AL) commonly presents with nephrotic range proteinuria, heart failure with preserved ejection fraction, nondiabetic peripheral neuropathy, unexplained hepatomegaly or diarrhea, and should be considered in patients presenting with these symptoms. More importantly, patients being monitored for smoldering multiple myeloma and a monoclonal gammopathy of undetermined significance (MGUS) are at risk for developing AL amyloidosis. MGUS and myeloma patients that have atypical features, including unexplained weight loss; lower extremity edema, early satiety, and dyspnea on exertion should be considered at risk for light chain amyloidosis. Overlooking the diagnosis of light chain amyloidosis leading to therapy delay is common, and it represents an error of diagnostic consideration. Herein we provide a review of established and investigational treatments for patients with AL amyloidosis and provide algorithms for workup and management of these patients.Subject terms: Myeloma, Chemotherapy  相似文献   
17.
18.
Fibroblast growth factor receptors (FGFRs) are aberrantly activated through single-nucleotide variants, gene fusions and copy number amplifications in 5–10% of all human cancers, although this frequency increases to 10–30% in urothelial carcinoma and intrahepatic cholangiocarcinoma. We begin this review by highlighting the diversity of FGFR genomic alterations identified in human cancers and the current challenges associated with the development of clinical-grade molecular diagnostic tests to accurately detect these alterations in the tissue and blood of patients. The past decade has seen significant advancements in the development of FGFR-targeted therapies, which include selective, non-selective and covalent small-molecule inhibitors, as well as monoclonal antibodies against the receptors. We describe the expanding landscape of anti-FGFR therapies that are being assessed in early phase and randomised controlled clinical trials, such as erdafitinib and pemigatinib, which are approved by the Food and Drug Administration for the treatment of FGFR3-mutated urothelial carcinoma and FGFR2-fusion cholangiocarcinoma, respectively. However, despite initial sensitivity to FGFR inhibition, acquired drug resistance leading to cancer progression develops in most patients. This phenomenon underscores the need to clearly delineate tumour-intrinsic and tumour-extrinsic mechanisms of resistance to facilitate the development of second-generation FGFR inhibitors and novel treatment strategies beyond progression on targeted therapy.Subject terms: Cancer, Cancer  相似文献   
19.
20.
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