title: [Symposium on pulmonary surfactant. 1. Its relationship to pulmonary function].
mesh_terms: D000818:Animals; D004285:Dogs; D066298:In Vitro Techniques; D008168:Lung / Q000502:physiology*; D011402:Pronase / Q000494:pharmacology; D011650:Pulmonary Alveoli / Q000187:drug effects / Q000502:physiology; D011663:Pulmonary Surfactants / Q000502:physiology*; D013500:Surface Tension; D013501:Surface-Active Agents / Q000494:pharmacology
chemical_list: D011663:Pulmonary Surfactants; D013501:Surface-Active Agents; D011402:Pronase