title: Effects of K+ on the behaviour of isolated frog atria in sucrose media.
mesh_terms: D000818:Animals; D001001:Anura; D003470:Culture Media; D006325:Heart Atria / Q000187:drug effects*; D009119:Muscle Contraction / Q000187:drug effects*; D010477:Perfusion; D011188:Potassium / Q000494:pharmacology*; D013395:Sucrose
chemical_list: D003470:Culture Media; D013395:Sucrose; D011188:Potassium