title: TREAT: tamper-resistant envelope allocation technique for a multisite study.
authors.affiliation: Department of Obstetrics and Gynecology, University of Colorado School of Medicine, 12631 E. 17th Avenue, Mail Stop B198-2, Aurora, CO 80045, USA. Electronic address: Jeanelle.Sheeder@ucdenver.edu.
authors.forename: Jeanelle
authors.initials: J
authors.lastname: Sheeder
authors.affiliation: Prevention Research Center for Family and Child Health, University of Colorado School of Medicine, Mail Stop 8410, 13121 E. 17th Avenue, Room 5319, Aurora, CO 80045, USA.
authors.forename: Rebecca A
authors.initials: RA
authors.lastname: Seale
authors.affiliation: Prevention Research Center for Family and Child Health, University of Colorado School of Medicine, Mail Stop 8410, 13121 E. 17th Avenue, Room 5319, Aurora, CO 80045, USA.
authors.forename: Kim D
authors.initials: KD
authors.lastname: Weber Yorga
mesh_terms: D006801:Humans; D015337:Multicenter Studies as Topic / Q000592:standards*; D018579:Patient Selection; D016032:Randomized Controlled Trials as Topic / Q000592:standards*; D012107:Research Design