title: On the positive inotropic action of glucagon in the isolated atria of the guinea-pig.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism; D002127:Calcium Isotopes; D004558:Electric Stimulation; D005260:Female; D005934:Glucagon / Q000494:pharmacology*; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D006325:Heart Atria / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009206:Myocardium / Q000378:metabolism
chemical_list: D002127:Calcium Isotopes; D005934:Glucagon; D002118:Calcium