Propranolol in tetralogy of Fallot.
D002648:Child; D002675:Child, Preschool; D004417:Dyspnea / Q000188:drug therapy* / Q000517:prevention & control*; D006801:Humans; D000860:Hypoxia / Q000517:prevention & control*; D011300:Preoperative Care; D011433:Propranolol / Q000627:therapeutic use*; D013771:Tetralogy of Fallot / Q000188:drug therapy* / Q000601:surgery
D011433:Propranolol