title: Long-term efficacy of verapamil in the treatment of paroxysmal supraventricular tachycardias.
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004562:Electrocardiography; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D013614:Tachycardia, Paroxysmal / Q000188:drug therapy*; D014700:Verapamil / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D014700:Verapamil