Stimulating effect of acetylcholine on frog and guinea-pig hearts.
D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D001001:Anura; D006168:Guinea Pigs; D006321:Heart / Q000494:pharmacology*; D011898:Ranidae
D000109:Acetylcholine
ACETYLCHOLINE/pharmacology; HEART/pharmacology