1 University at Buffalo, State University of New York, School of Public Health and Health Professions, Department of Community Health and Health Behavior, 323 Kimball Tower, 3435 Main St., Buffalo, NY 14214-028, United States. Electronic address: LK22@buffalo.edu.
2 University of Michigan, School of Public Health, Department of Health Management & Policy, Room M3517 SPH II, 1415 Washington Heights, Ann Arbor, MI 48109-2029, United States.