title: Hypothesis formulation and testing in substance use prevention research.
authors: Department of Public Health Sciences Bowman Gray School of Medicine, Winston-Salem, NC 27157-1063, USA.
authors: W B
authors: WB
authors: Hansen
mesh_terms: D015233:Models, Statistical; D012107:Research Design / Q000592:standards*; D013269:Stochastic Processes; D019966:Substance-Related Disorders / Q000517:prevention & control*