title: Comments on 'Hypothesis testing for two-stage designs with over or under enrollment'.
authors.affiliation: Data and Statistical Sciences, AbbVie Deutschland GmbH & Co KG, Knollstraβe, Ludwigshafen, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Englert
authors.affiliation: Institute of Medical Biometry and Informatics, University of Heidelberg, INF 305, Heidelberg, Germany.
authors.forename: Meinhard
authors.initials: M
authors.lastname: Kieser
mesh_terms: D017322:Clinical Trials, Phase II as Topic / Q000706:statistics & numerical data*; D006801:Humans; D018401:Sample Size