345: CPR COACH ROLE IMPROVES DEPTH, RATE, AND RETURN OF SPONTANEOUS CIRCULATION. (January 2018) - Pfeiffer, Stephen; Duval-Arnould, Jordan; Wenger, Jesse; Lauridsen, Kasper; Hunt, Elizabeth; Haskell, Sarah; Atkins, Dianne; Knight, Lynda; Cheng, Adam; Gilfoyle, Elaine; Su, Felice; Balikai, Shilpa; et al.