Adventist Health-White Memorial Los Angeles, CA AHMC Anaheim Regional Medical Center Anaheim, CA Barlow Respiratory Hospital Los Angeles, CA Beverly Hospital Montebello, CA Lakewood Regional Medical Center Lakewood, CA Los Alamitos Medical Center Los Alamitos, CA PIH Health Hospital-Downey Downey, CA PIH Health Hospital-Whittier Whittier, CA Providence Little Company of Mary Medical Center San Pedro San Pedro, CA St. Mary Medical Center Long Beach, CA Torrance Memorial Medical Center Torrance, CA Whittier Hospital Medical Center Whittier, CA