Comparative activities of certain quaternary ammonium compounds as assayed by the isolated auricle technique.
D064751:Ammonium Compounds / Q000494:pharmacology*; D001681:Biological Assay; D054644:Ear Auricle; D004431:Ear, External; D006321:Heart / Q000187:drug effects*; D006801:Humans; D000644:Quaternary Ammonium Compounds
D064751:Ammonium Compounds; D000644:Quaternary Ammonium Compounds
AMMONIUM COMPOUNDS/effects; HEART/effect of drugs on