Frequency of distribution of inflammatory cytokines IL-1, IL-6 and TNF-alpha gene polymorphism in patients with obstructive sleep apnea. - Popko K; Gorska E; Potapinska O; Wasik M; Stoklosa A; Plywaczewski R; Winiarska M; Gorecka D; Sliwinski P; Popko M; Szwed T; Demkow U (Journal of physiology and pharmacology : an official journal of the Polish Physiological Society, 2008)