[1] Roswell Park Comprehens Canc Ctr, Dept Hlth Behav, Elm & Carlton St, Buffalo, NY 14263 USA
[2] Westat Corp, Behav Hlth & Hlth Policy Practice, Rockville, MD USA
[3] Univ Waterloo, Dept Psychol, Waterloo, ON, Canada
[4] US FDA, Off Sci, Ctr Tobacco Prod, Beltsville, MD USA
[5] NIDA, NIH, Bethesda, MD 20892 USA
[6] Kelly Govt Solut, Rockville, MD USA
[7] Univ Waterloo, Sch Publ Hlth & Hlth Syst, Waterloo, ON, Canada
[8] Ontario Inst Canc Res, Toronto, ON, Canada