METHODS	Medicated bronchoalveolar lavage was performed using five aliquots of 5 mL of saline plus 10 mg/mL Curosurf ( porcine surfactant , Chiesi Pharmaceutical SpA , Parma , Italy ) in infants , five boluses of 10 mL of saline plus 5 mg/mL Curosurf in children , and four boluses of 25 mL of saline with 2.4 mg/mL Curosurf in adolescents for each affected lobe .\