Hospitals in the Netherlands are paying vastly different amounts for the same cancer medications, with some treatments costing more than 2,800 euros extra per patient, according to research by KWF and the Netherlands Cancer Institute (NKI) at Antoni van Leeuwenhoek Hospital (AvL).The study, conducted in collaboration with sister organizations in eight other European countries, analyzed payments for 15 cancer drugs across 23 hospitals, including six in the Netherlands. To protect confidentiality agreements, researchers did not disclose which hospitals participated.