title: Discussion of case mix systems--DRG versus HRG.
authors.affiliation: CORE Healthcare Management Services.
authors.forename: S
authors.initials: S
authors.lastname: Freyaldenhoven
authors.forename: R
authors.initials: R
authors.lastname: Campbell
mesh_terms: D000367:Age Factors; D015897:Comorbidity; D003953:Diagnosis-Related Groups; D004194:Disease / Q000145:classification*; D012720:Severity of Illness Index; D006113:United Kingdom