title: Spectrophotometric accuracy.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis; D001663:Bilirubin / Q000032:analysis*; D005260:Female; D006801:Humans; D008722:Methods; D011247:Pregnancy; D013053:Spectrophotometry / Q000592:standards*
chemical_list: D001663:Bilirubin