1. From the Department of Emergency Medicine, Spectrum Health and Michigan State University College of Human Medicine, Grand Rapids (J.A.O.)
2. Kent County Emergency Medical Services, Grand Rapids, MI (T.C.)
3. Department of Research and Innovation, Mercy Health St. Mary’s Hospital, Grand Rapids, MI (W.B.)
4. Department of Emergency Medicine, Metro Health Hospital, Wyoming, MI (A.E.)
5. Department of Epidemiology and Biostatistics, Michigan State University College of Human Medicine, East Lansing, MI (M.J.R.).