title: Quality improvement can't be optional.
authors.forename: E H
authors.initials: EH
authors.lastname: Wagner
mesh_terms: D002908:Chronic Disease; D003866:Depressive Disorder / Q000628:therapy*; D019468:Disease Management; D006801:Humans; D015969:National Academies of Science, Engineering, and Medicine, U.S., Health and Medicine Division; D010348:Patient Care Team; D011320:Primary Health Care / Q000592:standards; D017749:Total Quality Management; D014481:United States