title: HMOs' restrictions on clinical practice.
authors.forename: Theodore J
authors.initials: TJ
authors.lastname: Wilf
mesh_terms: D004363:Drug Utilization; D006279:Health Maintenance Organizations; D006801:Humans; D001523:Mental Disorders / Q000188:drug therapy*; D008605:Mental Health Services / Q000600:supply & distribution*; D020403:Patient Freedom of Choice Laws; D010818:Practice Patterns, Physicians'; D014481:United States