title: [A specific method of suppressing sinoatrial nodal automaticity].
mesh_terms: D000818:Animals; D004285:Dogs; D004562:Electrocardiography; D012849:Sinoatrial Node / Q000187:drug effects*; D014700:Verapamil / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D014700:Verapamil