1. Department of Dermatovenerology, Faculty of Medicine , Comenius University, Mickiewiczova 13 , 813 69 Bratislava , Slovakia
2. Oklahoma Cancer Specialists and Research Institute, 12697 East 51st Street South , Tulsa, OK 74146 , USA
3. Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics , Comenius University, Mlynská dolina F1 , 842 48 Bratislava , Slovakia
4. Chemicell GmbH, Berlin, Eresburgstrasse 22-23 , 12103 Berlin , Germany
5. Department of Surgical Oncology, Saint Elisabeth Cancer Institute and Faculty of Medicine , Comenius University, Heydukova 10 , Bratislava , Slovakia