a (AFT), Centene (CNC), Cigna (CI), Community Health Systems (CYH), DaVita HealthCare Partners Inc (DVA), HCA (HCA), Health Net (HNT), Humana (HUM), LifePoint (LPNT), Molina (MOH), Surgical Care Affiliates (SCAI), Tenet (THC), UnitedHealth (UNIO, Universal Health Services Inc. (UHS), WellPoint (WLP) 16 E