Božidar Radišič and Tanja Cvetrežnik Paul Hornby and Dean Herenda Dušan Nolimal Božidar Radišič Dean Herenda Robert J. Melamede Robert J. Melamede Robert J. Melamede, PhD Paul Hornby Paul Hornby Paul Hornby, PhD Paul Hornby Paul Hornby, PhD Paul Hornby, PhD Paul Hornby Božidar Radišič and Tanja Cvetrežnik Dorothy H. Bray Guillermo Velasco Díez Guillermo Velasco Díez František Bednarik Dušan Nolimal, MD, MSPH Dušan Nolimal, MD, MSPH Lumír Ondřej Hanuš gives lecture via internet Lumír Ondřej Hanuš gives lecture via internet Dorothy H. Bray Dorothy H. Bray Dorothy H. Bray Guillermo Velasco Díez