title: Cortisol concentrations and lecithin-sphingomyelin ratios in amniotic fluid.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000032:analysis*; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins; D006854:Hydrocortisone