Pulmonary Surfactant-Associated Protein C. Pulmonary Surfactant Protein C . SP-C protein . Surfactant Polypeptide SP-C . Pulmonary Surfactant Associated Protein C . Pulmonary Surfactant Associated Protein SP C . SP C protein . SP-C, Surfactant Polypeptide . Surfactant Polypeptide SP C . Pulmonary Surfactant-Associated Protein SP-C . 0.93