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   3313851篇
  免费   238944篇
  国内免费   5797篇
耳鼻咽喉   47669篇
儿科学   105294篇
妇产科学   91743篇
基础医学   482351篇
口腔科学   94791篇
临床医学   295560篇
内科学   636791篇
皮肤病学   74429篇
神经病学   263360篇
特种医学   126643篇
外国民族医学   894篇
外科学   503593篇
综合类   71214篇
现状与发展   16篇
一般理论   1215篇
预防医学   250404篇
眼科学   78819篇
药学   248465篇
  13篇
中国医学   6847篇
肿瘤学   178481篇
  2018年   35331篇
  2017年   27084篇
  2016年   30413篇
  2015年   33810篇
  2014年   47581篇
  2013年   72426篇
  2012年   98102篇
  2011年   104574篇
  2010年   62098篇
  2009年   58658篇
  2008年   98950篇
  2007年   106346篇
  2006年   106957篇
  2005年   103977篇
  2004年   99816篇
  2003年   96645篇
  2002年   93970篇
  2001年   149752篇
  2000年   153893篇
  1999年   129613篇
  1998年   37370篇
  1997年   33006篇
  1996年   32599篇
  1995年   30904篇
  1994年   28604篇
  1993年   26952篇
  1992年   100623篇
  1991年   98193篇
  1990年   96047篇
  1989年   93023篇
  1988年   86019篇
  1987年   84596篇
  1986年   79967篇
  1985年   76738篇
  1984年   57209篇
  1983年   48771篇
  1982年   29225篇
  1981年   26371篇
  1979年   53565篇
  1978年   38406篇
  1977年   32592篇
  1976年   30563篇
  1975年   33703篇
  1974年   40215篇
  1973年   38628篇
  1972年   36531篇
  1971年   34478篇
  1970年   32203篇
  1969年   30781篇
  1968年   28466篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
11.
12.
13.
14.
15.
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   
16.
17.
18.
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   
19.
20.
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   
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