title: Which fetal maturity studies should I use?
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis / Q000166:cytology; D005260:Female; D005325:Fetal Organ Maturity; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008168:Lung / Q000196:embryology; D011247:Pregnancy; D011663:Pulmonary Surfactants / Q000032:analysis; D012127:Respiratory Distress Syndrome, Newborn / Q000517:prevention & control; D014463:Ultrasonography
chemical_list: D011663:Pulmonary Surfactants