Geissler, A. , , Quentin, W. , and Busse, R. . "Heterogeneity of European DRG Systems and Potentials for a Common Eurodrg System; Comment on “Cholecystectomy and Diagnosis-Related Groups (DRGs): Patient Classification and Hospital Reimbursement in 11 European Countries”", International Journal of Health Policy and Management, 4, 5, 2015, 319-320. doi: 10.15171/ijhpm.2015.53