Effect of quaternary nitrogen compounds on the S.A. node in profound hypothermia.
D064751:Ammonium Compounds / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects*; D006801:Humans; D007035:Hypothermia; D017672:Nitrogen Compounds
D064751:Ammonium Compounds; D017672:Nitrogen Compounds
AMMONIUM COMPOUNDS/effects; HEART/effect of drugs on; HYPOTHERMIA/experimental