title: Proceedings: Refractory period in hypoxia and in high extracellular potassium in the embryonic chick heart.
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000139:chemically induced; D002642:Chick Embryo; D006321:Heart / Q000196:embryology / Q000502:physiology*; D000860:Hypoxia / Q000503:physiopathology*; D011188:Potassium / Q000494:pharmacology*
chemical_list: D011188:Potassium