title: New statistical methods for substance use prevention research.
authors.affiliation: Department of Human Development and Family Studies, Pennsylvania State University, University Park 16802-6504, USA.
authors.forename: L M
authors.initials: LM
authors.lastname: Collins
authors.forename: L A
authors.initials: LA
authors.lastname: Seitz
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D012107:Research Design; D019966:Substance-Related Disorders / Q000517:prevention & control*; D016019:Survival Analysis