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3篇 您的检索式:作者名="S.Leung"
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1The economic burden of influenza-associated outpatient visits and hospitalizations in China: a retrospective survey显示文摘Background:The seasonal influenza vaccine coverage rate in China is only 1.9%.There is no information available on the economic burden of influenza-associated outpatient visits and hospitalizations at the national level,even though this kind of information is important for informing national-level immunization policy decision-making.Methods:A retrospective telephone survey was conducted in 2013/14 to estimate the direct and indirect costs of seasonal influenza-associated outpatient visits and hospitalizations from a societal perspective.Study participants were laboratory-confirmed cases registered in the National Influenza-like Illness Surveillance Network and Severe Acute Respiratory Infections Sentinel Surveillance Network in China in 2013.Patient-reported costs from the survey were validated by a review of hospital accounts for a small sample of the inpatients.Results:The study enrolled 529 outpatients(median age:eight years;interquartile range[IQR]:five to 20 years)and 254 inpatients(median age:four years;IQR:two to seven years).Among the outpatients,22.1%(117/529)had underlying diseases and among the inpatients,52.8%(134/254)had underlying diseases.The average total costs related to influenza-associated outpatient visits and inpatient visits were US$155(standard deviation,SD US$122)and US$1,511(SD US$1,465),respectively.Direct medical costs accounted for 45 and 69%of the total costs related to influenza-associated outpatient and inpatient visits,respectively.For influenza outpatients,the mean cost per episode in children aged below five years(US$196)was higher than that in other age groups(US$129–153).For influenza inpatients,the mean cost per episode in adults aged over 60 years(US$2,735)was much higher than that in those aged below 60 years(US$1,417–1,621).Patients with underlying medical conditions had higher costs per episode than patients without underlying medical conditions(outpatients:US$186 vs.US$146;inpatients:US$1,800 vs.US$1,189).In the baseline analysis,inpatients reported costs were 18%higher than those found in the accounts review(n=38).Conclusion:The economic burden of influenza-associated outpatient and inpatient visits in China is substantial,particularly for young children,the elderly,and patients with underlying medical conditions.More widespread influenza vaccination would likely alleviate the economic burden of patients.The actual impact and cost-effectiveness analysis of the influenza immunization program in China merits further investigation.Juan Yang Mark Jit Kathy S.Leung Ya-ming Zheng Lu-zhao Feng Li-ping Wang Eric H.Y.Lau Joseph T.Wu Hong-jie Yu 2015Infectious Diseases of Poverty2015,4,1:44
2Zinc finger E‐box binding factor 1 plays a central role in regulating Epstein‐Barr virus (EBV) latent‐lytic switch and acts as a therapeutic target in EBV‐associated gastric cancer显示文摘JunhongZhao HongchuanJin Kin FaiCheung Joanna H. M.Tong SuiZhang Minnie Y. Y.Go LinweiTian WeiKang Patrick P. S.Leung ZhirongZeng XiaoxingLi Ka FaiTo Joseph J. Y.Sung JunYu 2012Cancer2012,,4:1
3专用集成电路设计的概念构架显示文摘随着设计综合自动系统愈来愈强大和集成电路市场进一步转向专用技术,迅速地把发展中的专用集成电路(ASIC)技术转移到其他工程学科中去的问题已经变得十分重要了。概念构架有助于我们更好地理解ASIC设计的本质。本文从设计决策的整体性出发,采用设计过程、设计多维空间和设计指令表三方面的框架知识来描述构架。设计过程框架着重于层次设计途径并介绍定型了的设计处理方法。设计多维空间概念涉及到对设计选择元的识别。对评价算法和体系结构选择元的分析技术进行了收集和分类,以形成设计指令表。这种概念构架是弥合系统设计者和超大规模(VLSI)技术之间正在展宽的间隙的一种有效的办法,它也为开发高级体系结构设计的新手段提供了概念性舞台。Steven S.Leung 濮兰雪 1989微电子学1989,19,4:0
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