1. Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10 000 Zagreb, Croatia
2. Agency for Medicinal Products and Medicinal Devices of Croatia, Ksaverska Cesta 4, 10 000 Zagreb, Croatia
3. Sample Control, Puškarićeva Ulica 18, 10 250 Lučko, Croatia
4. Public Health Brčko DC, R. Dž. Čauševića 1, 76000 Brčko DC, Bosnia and Hercegovina