Effects of vasoconstrictor agents on cardiac irritability.
D001808:Blood Vessels / Q000187:drug effects*; D006321:Heart; D006801:Humans; D013566:Sympathomimetics; D014662:Vasoconstrictor Agents
D013566:Sympathomimetics; D014662:Vasoconstrictor Agents
SYMPATHOMIMETICS/effects; VESSELS/effect of drugs on