title: How an HMO doctor determines 'medical necessity'.
authors.forename: C E
authors.initials: CE
authors.lastname: Quinn
mesh_terms: D000068:Accreditation; D003657:Decision Making; D004992:Ethics, Medical; D006279:Health Maintenance Organizations / Q000458:organization & administration* / Q000592:standards; D007400:Interprofessional Relations; D009518:New York; D016134:Organizational Policy; D008486:Physician Executives; D016896:Treatment Outcome