1Department of Anaesthesiology and Intensive Therapy – Centre for Artificial Extracorporeal Kidney and Liver Support, The Dr Wł. Bieganski Regional Specialist Hospital, Lodz, Poland
2Faculty of Economics and Sociology, Department of Insurance, University of Lodz, Lodz, Poland
3Public Health Department, Health Sciences Faculty, Medical University, Lodz, Poland
4National Health Protection Fund, Warsaw, Poland
5Health Care Policy Department, Medical University, Lodz, Poland