title: History of sphygmology and of heart block.
mesh_terms: D001285:Atropine / Q000627:therapeutic use; D001919:Bradycardia / Q000266:history; D002309:Cardiology / Q000266:history*; D004562:Electrocardiography / Q000266:history; D006327:Heart Block / Q000266:history* / Q000628:therapy; D006329:Heart Conduction System; D006339:Heart Rate; D049690:History, Ancient; D049691:History, Medieval; D049711:History, Modern 1601-; D006801:Humans; D010138:Pacemaker, Artificial; D011342:Procainamide / Q000627:therapeutic use; D011674:Pulse; D011802:Quinidine / Q000627:therapeutic use
chemical_list: D001285:Atropine; D011802:Quinidine; D011342:Procainamide