title: Significance of surfactant transitions in the respiratory process.
mesh_terms: D000818:Animals; D002245:Carbon Dioxide; D004285:Dogs; D008168:Lung / Q000502:physiology; D011663:Pulmonary Surfactants / Q000502:physiology*; D012119:Respiration
chemical_list: D011663:Pulmonary Surfactants; D002245:Carbon Dioxide