New legislation would force UnitedHealth Group, CVS Health and Cigna to each sell their pharmacies within three years. Health Insurance and Managed Care, Drugs (Pharmaceuticals), Law and Legislation, Drugstores, Aetna Inc, CIGNA Corporation, CVS Caremark Corporation, Express Scripts Inc, UnitedHealth Group Inc, Optum Inc, Hawley, Josh D (1979- ), Warren, Elizabeth New legislation would force UnitedHealth Group, CVS Health and Cigna to each sell their pharmacies within three years. NYT > Business