ARDMS Exam Review Questions: Quiz 269 January 8, 2016 By Aamir Khan Leave a Comment A protein produced by the yolk sac and fetal liver that is found in excess in the maternal circulation in the presence of a neural tube defect is: a. PAPP-A b. hCG c. Estriol d. AFP Δ For More questions please join Our facebook group: https://www.facebook.com/groups/249298882082586/?ref=br_rs
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