title: [Seasonal fluctuation of acetylcholine and cholinesterase contents in the heart muscles of the frog].
mesh_terms: D000109:Acetylcholine / Q000032:analysis*; D000818:Animals; D001001:Anura; D002802:Cholinesterases / Q000378:metabolism*; D003080:Cold Temperature; D006358:Hot Temperature; D009206:Myocardium / Q000032:analysis* / Q000201:enzymology; D011898:Ranidae; D012621:Seasons
chemical_list: D002802:Cholinesterases; D000109:Acetylcholine