title: Control of chronic ectopic supraventricular tachycardia with verapamil.
mesh_terms: D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006801:Humans; D013610:Tachycardia / Q000188:drug therapy*; D014700:Verapamil / Q000627:therapeutic use*
chemical_list: D014700:Verapamil