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In biomedical research, researchers frequently use statistical procedures such as the t-test, standard analysis of variance (ANOVA), or the repeated measures ANOVA to compare means between the groups of interest. There are frequently some misuses in applying these procedures since the conditions of the experiments or statistical assumptions necessary to(More)
BACKGROUND A live oral Vibrio cholerae O1 El Tor vaccine candidate, Peru-15, was studied for safety, immunogenicity, and excretion in phase 1 (inpatient) and phase 2 (outpatient) studies of Bangladeshi adults.METHODs. The study was conducted among adults, by use of a double-blind, randomized, placebo-controlled design. A single dose of Peru-15(More)
Eunsik Park and Yaun-chin Ivan Chang*, in press, "Sequential analysis of longitudinal data in a prospective nested case-control study", Biometrics. 技術報告 Zhan-Feng Wang and Yuan-chin Ivan Chang, submitted, "Markers selection via maximizing the partial area under ROC curve of linear risk scores",Sequential optimal estimate of partial area under ROC curve with(More)
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