1. School of Human Services, University of Cincinnati, P.O. Box 210068, Cincinnati, Ohio 45221, United States
2. Division of Emergency Medicine, Cincinnati Children’s Hospital Medical Center, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, Ohio 45229, United States
3. Division of Biostatistics and Bioinformatics, Department of Environmental and Public Health Sciences, College of Medicine, University of Cincinnati, Kettering Lab Building, 160 Panzeca Way, Cincinnati, Ohio 45267-0056, United States
4. Tobacco and Volatiles Branch, Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy NE, Atlanta, Georgia 30341, United States
5. Department of Psychology, College of Sciences, San Diego State University, 9245 Sky Park Court, Suite 225, San Diego, California 92123, United States