Respiratory functional changes after caudal block in pediatric surgery.
D000763:Anesthesia, Caudal / Q000009:adverse effects / Q000379:methods*; D000767:Anesthesia, Epidural / Q000379:methods*; D001784:Blood Gas Analysis; D002648:Child; D006801:Humans; D000860:Hypoxia / Q000209:etiology; D010102:Oxygen Inhalation Therapy; D012119:Respiration