title: The estimation of perinatal pulmonary maturity: a commentary.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis; D005865:Gestational Age; D006801:Humans; D006819:Hyaline Membrane Disease / Q000175:diagnosis / Q000517:prevention & control* / Q000628:therapy; D007231:Infant, Newborn; D008168:Lung / Q000254:growth & development*; D010713:Phosphatidylcholines / Q000032:analysis / Q000096:biosynthesis / Q000502:physiology; D011175:Positive-Pressure Respiration; D011650:Pulmonary Alveoli; D011663:Pulmonary Surfactants / Q000096:biosynthesis / Q000502:physiology; D013109:Sphingomyelins / Q000032:analysis; D013501:Surface-Active Agents / Q000502:physiology*
chemical_list: D010713:Phosphatidylcholines; D011663:Pulmonary Surfactants; D013109:Sphingomyelins; D013501:Surface-Active Agents