title: Tetrodotoxin and Ciona heart.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D006321:Heart / Q000187:drug effects*; D066298:In Vitro Techniques; D013779:Tetrodotoxin / Q000494:pharmacology*; D014561:Urochordata
chemical_list: D013779:Tetrodotoxin