Prospective , randomized , 22 factorial-design trial with explicit methods ( July 1 , 2012 , to April 15 , 2014 ) at 10 International Network for Simulation-Based Pediatric Innovation , Research , & Education ( INSPIRE ) institutions running a standardized simulated CPA scenario , including 324 CPR-certified health care professionals assigned to 3-person resuscitation teams ( 108 teams ) .