<prompt> A 2-yr-old boy presented with abdominal distension, chronic diarrhea, severe anemia and failure to thrive. Which of the following is the investigation of choice?Anti milk protein antibodyAnti endomysial antibodyAntinuclear antibodyIntestinal biopsy  <response>: b. Anti endomysial antibodyRef: Nelsons 20e p 1835-1837The given clinical features suggest a diagnosis of Celiac diseaseAnti Endomysial antibody anti EMA Anti tissue transglutaminase anti TTG antibody help in diagnosis of Celiac disease. 