1. Doping Control Laboratory, Seibersdorf Labor GmbH; Seibersdorf Austria
2. Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy; University of Tromsø - The Arctic University of Norway; Tromsø Norway
3. Childrens Hospital Srebrnjak, Clinical Trials Unit; Zagreb Croatia
4. Josip Juraj Strostamyer University of Osijek, Medical School; Osijek Croatia
5. Institute of Biochemistry, Center for Preventive Doping Research; German Sport University; Cologne Germany