1. Boynton Health Service, University of Minnesota, Minneapolis, MN. Medical director of Sports Medicine, Augsburg University, Minneapolis, MN., Email: info@thematdoc.com
2. Department of Family Medicine, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
3. Carver College of Medicine, University of Iowa, Iowa City, Iowa, Stead Family Department of Pediatrics, University of Iowa, Iowa City, Iowa, Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, Iowa.