1. Department of Pharmaceutical Health Outcomes and Policy, College of Pharmacy, University of Houston, TX, USA;
2. US Health Economics and Outcomes Research, Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA;
3. US Clinical Development and Medical Affairs, Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA;
4. Northshore University HealthSystem, Evanston, IL, USA;
5. Department of Pediatrics, University of California, San Francisco, CA, USA;
6. Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA;
7. Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA;
8. Boys Town National Research Hospital, Boys Town, NE, USA