title: Effects of strontium ions on heart muscle. I. Influences on contractility.
mesh_terms: D000818:Animals; D001001:Anura; D002415:Cats; D006321:Heart / Q000187:drug effects* / Q000502:physiology*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D010210:Papillary Muscles / Q000187:drug effects*; D051381:Rats; D013324:Strontium / Q000494:pharmacology*
chemical_list: D013324:Strontium