<prompt> Screening by using maternal serum alpha fetoproteins helps to detect all of the following except:Neural tube defectsDuodenal atresiaTalipes equinovarusOmphalocele  <response>: Elevated LevelsError in datesMultifetal pregnancySevere oligohydramniosNeural tube defectsPilonidal cystsEsophageal or intestinal obstruction and atresiaLiver necrosisCystic hygromaSacrococcygeal teratomaFetal deathAbdominal wall defects: omphalocele gastroschisisUrinary obstructionRenal anomalies: polycystic kidney absent kidneysCongenital nephrosisOsteogenesis imperfectaCongenital skin defectsCloacal exstrophyChorioangioma of placentaLow birth weightPlacental abruptionPlacenta accretaPreeclampsiaImproper adjustment for low maternal weightMaternal hepatoma or teratomaLow LevelsG: Gestational trophoblastic diseasesO2: Overestimated gestational age, overweight motherA: Spontaneous abortionT: Trisomy 21 or 18 