Boris Reinić, M.D., PhD, Head of Center for Underwater and Hyperbaric Medicine, Peter Kokalj, general manager of AHA Hyperbarics, Mario Franolić, M.D. Clicnical Hospital Center Rijeka, Jacek Kot, M.d., PhD, Assistant Professor at Medical University of Gdansk and Pasquale Longobardi, M.D., Ravenna Hyperbaric Centre (from left to right)