1. Chair and Department of Pharmacoeconomics and Social Pharmacy, Medical University of Poznan, 61-701 Poznan, Poland
2. Independent Public Healthcare Center in Miedzychod, 64-400 Miedzychod, Poland
3. School of Public Health, Centre of Postgraduate Medical Education of Warsaw, 01-813 Warsaw, Poland
4. Department of Pharmacoeconomics, The Institute of Mother and Child, 01-211 Warsaw, Poland
5. Business School, Warsaw University of Technology, 00-661 Warsaw, Poland