1. Alere Wellbeing, Inc., 999 Third Avenue, Suite 2000, Seattle, WA 98104, USA
2. Carter Consulting, Inc., Contractor to Office on Smoking and Health, Centers for Disease Control and Prevention, 4770 Buford Highway NE, MS F-79, Atlanta, GA 30341, USA
3. Office on Smoking and Health, Centers for Disease Control and Prevention, 4770 Buford Highway, NE MS F-79, Atlanta, GA 30341, USA
4. Biostatistics, Inc., 1738 Illehaw Drive, Sarasota, FL 34239, USA