title: On the role of acetylcholine in regulating the rate of the early chick embryo heart.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D001713:Biphenyl Compounds / Q000494:pharmacology; D002642:Chick Embryo; D005730:Ganglionic Blockers / Q000494:pharmacology; D006339:Heart Rate / Q000187:drug effects*; D066298:In Vitro Techniques; D009206:Myocardium / Q000201:enzymology*; D011984:Sensory Receptor Cells / Q000187:drug effects
chemical_list: D001713:Biphenyl Compounds; D005730:Ganglionic Blockers; D000109:Acetylcholine