title: The gluck test and fetal lung maturity.
mesh_terms: D000328:Adult; D000653:Amniotic Fluid / Q000032:analysis*; D005333:Fetus; D006801:Humans; D008168:Lung / Q000196:embryology*; D010713:Phosphatidylcholines / Q000032:analysis*; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins