Pulmonary Alveolialpha-FetoproteinsFetusFetal ProteinsMacrophages, AlveolarAlveolar ProcessPulmonary Alveolar ProteinosisAlveolar Bone LossRhabdomyosarcoma, AlveolarBronchoalveolar Lavage FluidPneumocytesPulmonary SurfactantsMandibular NerveRespiratory MucosaPulmonary EdemaEpithelial CellsSarcoma, Alveolar Soft Part