1. California's ambulatory surgery centers: a black box of care Publication: Oakland, CA : California Health Care Foundation, February 2018 Subject(s): Ambulatory Care Facilities -- statistics & numerical dataSurgicenters -- statistics & numerical dataOperating Rooms -- statistics & numerical dataAmbulatory Care Facilities -- economicsAmbulatory Care Facilities -- trendsForecastingInsurance, Health -- statistics & numerical dataQuality Indicators, Health CareState GovernmentSurgical Procedures, Operative -- statistics & numerical dataSurgicenters -- economicsSurgicenters -- trendsHumansCaliforniaUnited StatesCenters for Medicare & Medicaid Services (U.S.)