Cholecystectomy and Diagnosis-Related Groups (DRGs): Patient classification and hospital reimbursement in 11 European countriesPaat-Ahi, Gerli; Aaviksoo, Ain; Świderek, MariaInternational journal of health policy and management2014 / p. 383-391 : ill https://doi.org/10.15171/ijhpm.2014.121 Journal metrics at Scopus Article at Scopus