1. Oklahoma Tobacco Research Center, University of Oklahoma Stephenson Cancer Center, Oklahoma City, OK, USA
2. Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
3. Bradley-Hasbro Children’s Research Center, Providence, RI, USA
4. Department of Psychiatry and Human Behavior, Warren Alpert Medical School Brown University, Providence, RI, USA
5. Department of Psychiatry and Human Behavior and Pediatrics, Warren Alpert Medical School Brown University, Providence, RI, USA