title: Amniotic fluid cortisol during gestation and its relation to fetal lung maturation.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D005333:Fetus; D005865:Gestational Age; D006801:Humans; D006854:Hydrocortisone / Q000032:analysis*; D008168:Lung / Q000196:embryology*; D010169:Palmitic Acids / Q000032:analysis; D010713:Phosphatidylcholines / Q000032:analysis; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D010169:Palmitic Acids; D010713:Phosphatidylcholines; D006854:Hydrocortisone