[Action of certain ions on the contraction of the isolated heart of the dogfish at different stimulation frequencies].
D000818:Animals; D004284:Dogfish; D006321:Heart / Q000494:pharmacology*; D007477:Ions / Q000494:pharmacology*; D017747:Seafood; D012754:Sharks / Q000502:physiology*
D007477:Ions
HEART/pharmacology; IONS/pharmacology; SHARKS/physiology