title: Combining an Internal Pilot with an Interim Analysis for Single Degree of Freedom Tests.
authors.affiliation: Division of Biostatistics, Department of Epidemiology and Health Policy Research, College of Medicine, University of Florida. PO Box 100177, Gainesville, FL 32610, USA.
authors.forename: John A
authors.initials: JA
authors.lastname: Kairalla
authors.forename: Keith E
authors.initials: KE
authors.lastname: Muller
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Coffey