title: [The L/S ratio and its relationship to the degree of severity of the respiratory distress syndrome (proceedings)].
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012127:Respiratory Distress Syndrome, Newborn / Q000175:diagnosis*; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins
vernacular_title: Die L/S-Ratio und ihre Beziehung zum Schweregrad des Atemnotsyndroms.