A 6-year-old female presented with history of abdominal pain after each meal and at bed time, burning in nature associated with sour taste in her mouth. Of the following, the MOST likely cause is

A 6-year-old female presented with history of abdominal pain after each meal and at bed time, burning in nature associated with sour taste in her mouth. Of the following, the MOST likely cause is

Beckwith-Wiedemann syndrome is caused by an imprinting disorder and characterized by gigantism, macroglossia, microcephaly, visceromegaly, and

The diagnosis of celiac disease is confirmed by

An 18-month-old boy presented with sudden onset of vomiting; crampy abdominal pain; his knees draw up, and cries out and exhibits pallor with a colicky pattern occurring every 15 to 20 minutes. Of the following, the MOST likely diagnosis is

Permanent contraindication to breastfeeding is recommended in