1 National Centre for Hyperbaric Medicine, Institute of Maritime and Tropical Medicine in Gdynia, Medical University of Gdansk, Poland.
2 Address for correspondence: Jacek Kot, National Centre for Hyperbaric Medicine, Institute of Maritime and Tropical Medicine in Gdynia, Medical University of Gdansk, Poland, jkot@gumed.edu.pl.
3 Department of Human Physiology, Medical University of Gdansk, Poland.