title: The effect of nifedipine on the sinus and atrioventricular node of the dog heart after beta-adrenergic receptor blockade.
mesh_terms: D000070:Acebutolol / Q000494:pharmacology*; D000818:Animals; D001283:Atrioventricular Node / Q000187:drug effects*; D004285:Dogs; D005260:Female; D006329:Heart Conduction System / Q000187:drug effects*; D008297:Male; D009543:Nifedipine / Q000494:pharmacology*; D011725:Pyridines / Q000494:pharmacology*; D011943:Receptors, Adrenergic, beta / Q000187:drug effects; D012849:Sinoatrial Node / Q000187:drug effects*
chemical_list: D011725:Pyridines; D011943:Receptors, Adrenergic, beta; D000070:Acebutolol; D009543:Nifedipine