Elevated level of maternal serum alpha feto protein (MSAFP) is seen in all

Elevated level of maternal serum alpha feto protein (MSAFP) is seen in all the condition except mcq given below:

(a) Open neural tube defect
(b) Rh isoimmunization
(c) Anterior abdominal wall defect
(d) Down syndrome

Ans: (d) Down syndrome

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