title: Medicare's PPS implementation and increase in recording of psychotic depressive disorder: some thoughts on the reasons.
authors.forename: K B
authors.initials: KB
authors.lastname: Wells
mesh_terms: D003430:Cross-Sectional Studies; D003866:Depressive Disorder / Q000175:diagnosis* / Q000453:epidemiology; D003953:Diagnosis-Related Groups / Q000331:legislation & jurisprudence; D006801:Humans; D015994:Incidence; D006278:Medicare / Q000331:legislation & jurisprudence*; D011445:Prospective Payment System / Q000331:legislation & jurisprudence*; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000453:epidemiology; D014481:United States / Q000453:epidemiology