us-abim MCQ (SBA): Functional Heartburn

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HardGastroenterologyFunctional Heartburnus-abimus-usmle-step-3

A 62-year-old with GERD on PPI has persistent extraesophageal symptoms. EGD is normal; pH impedance shows no pathologic reflux. What is the diagnosis?

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us-abim MCQ: Functional Heartburn — Answer & Explanation | iatroX