Phosphodiesterase inhibition restores hypoxia-induced cerebrovascular dysfunction subsequent to improved systemic redox homeostasis: A randomized, double-blind, placebo-controlled crossover study. - Stacey BS; Marley CJ; Tsukamoto H; Dawkins TG; Owens TS; Calverley TA; Fall L; Iannetelli A; Lewis I; Coulson JM; Stembridge M; Bailey DM (Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2025)