title: Long-term therapy of paroxysmal supraventricular tachycardia: a randomized, double-blind comparison of digoxin, propranolol and verapamil.
mesh_terms: D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D004077:Digoxin / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use*; D011897:Random Allocation; D013614:Tachycardia, Paroxysmal / Q000188:drug therapy*; D014700:Verapamil / Q000627:therapeutic use*
chemical_list: D004077:Digoxin; D011433:Propranolol; D014700:Verapamil