title: [Is the adjustment for case-mix optional?].
authors.affiliation: Agenzia Nazionale per i Servizi Sanitari Regionali, Roma. Cislaghi@agenas.it
authors.forename: Cesare
authors.initials: C
authors.lastname: Cislaghi
authors.forename: Antonella
authors.initials: A
authors.lastname: Sferrazza
authors.forename: Carlo
authors.initials: C
authors.lastname: Zocchetti
mesh_terms: D003953:Diagnosis-Related Groups; D005249:Fees and Charges / Q000706:statistics & numerical data*; D017048:Health Care Costs / Q000706:statistics & numerical data*; D005102:Health Expenditures / Q000706:statistics & numerical data; D006285:Health Planning; D006296:Health Services / Q000191:economics / Q000706:statistics & numerical data; D006801:Humans; D007558:Italy