title: Simple tests in amniotic fluid for evaluation of gestational age.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis / Q000166:cytology*; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D013501:Surface-Active Agents / Q000032:analysis
chemical_list: D013501:Surface-Active Agents