title: Methodologies for optimizing behavioral interventions: introduction to special section.
authors.affiliation: National Institutes of Health, 9609 Medical Center Dr., MSC 9761, Rockville, MD 20850 USA.
authors.forename: William T
authors.initials: WT
authors.lastname: Riley
authors.affiliation: Arizona State University, Phoenix, AZ USA.
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Rivera