AGENCY FOR HEALTHCARE RESEARCH + QUALITY; CENTER FOR TOBACCO RESEARCH + INTERVENTI; CENTERS FOR DISEASE CONTROL + PREVENTION; COLUMBIA UNIV; HENNEPIN COUNTY RESEARCH CENTER; MA GENERAL HOSPITAL; MINNEAPOLIS MEDICAL RESEARCH FOUNDATION; MINNEAPOLIS RESEARCH FOUNDATION; MOUNT SINAI; NABI; NATL HEART LUNG + BLOOD INST; NATL INST ON DRUG ABUSE; NCI, NATL CANCER INST; PURDUE UNIV; ROBERT WOOD JOHNSON FOUNDATION; TEEN TOBACCO ADDICTION TREATMENT RESEARC; TRANSDISCIPLINARY TOBACCO USE RESEARCH C; UNIV OF CA LOS ANGELES; UNIV OF CA SAN DIEGO; UNIV OF CHICAGO; UNIV OF HOUSTON; UNIV OF TORONTO; UNIV OF WI; WA UNIV