title: Sequence Generation and Allocation Concealment.
authors.affiliation: National Cancer Institute and University of Maryland Baltimore County, Biometry Research Group, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850, USA. Electronic address: vb78c@nih.gov.
authors.forename: Vance W
authors.initials: VW
authors.lastname: Berger
mesh_terms: D006801:Humans; D011897:Random Allocation