Zdzisław Sićko – Doctor of Medical Sciences, specialist in anesthesiology and intensive care, Level III expert at the European College of Baromedicine, with 40 years of experience in hyperbaric medicine. His professional interests include hyperbaric therapy, medical support for deep commercial diving with mixed gases and saturation diving (offshore), military special diving operations, and tunnel boring machine (TBM) projects. Currently: retired head of the hyperbaric medicine clinic, serving as Medical Director of DAN Poland and a board member of the European Committee for Hyperbaric Medicine (ECHM), and is involved in providing medical support for commercial diving operations.