a Center for Child and Adolescent Health Policy, Massachusetts General Hospital, Boston, Massachusetts
b American Academy of Pediatrics Tobacco Consortium and Julius B. Richmond Center
c Department of Pediatrics, Dartmouth Medical School, Lebanon, New Hampshire
d Department of Psychology, San Diego State University, San Diego, California
e Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University, San Diego, California
f Social Science Research Center and Department of Psychology, Mississippi State University, Starkville, Mississippi
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