title: Phase II trial designs in the presence of stratification.
authors.forename: Say-Beng
authors.initials: SB
authors.lastname: Tan
authors.forename: David
authors.initials: D
authors.lastname: Machin
mesh_terms: D001499:Bayes Theorem; D017322:Clinical Trials, Phase II as Topic / Q000379:methods*; D006801:Humans; D012107:Research Design