title: Lipid-laden cells in amniotic fluid and the lecithin-sphingomyelin ratio.
mesh_terms: D000653:Amniotic Fluid / Q000166:cytology*; D005260:Female; D005865:Gestational Age; D006801:Humans; D008055:Lipids / Q000032:analysis*; D008297:Male; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D008055:Lipids; D010713:Phosphatidylcholines; D013109:Sphingomyelins