1. Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA;
2. Harvard Medical School, Boston, MA, USA;
3. Chronic Obstructive Pulmonary Disease Center, Brigham and Women’s Hospital, Boston, MA, USA;
4. Advance Health Solutions, LLC, New York, NY, USA;
5. Global Health Economics and Outcomes Research, Sunovion Pharmaceuticals Inc., Marlborough, MA, USA;
6. School of Professional Studies, Columbia University, New York, NY, USA