title: Endoscopy and hemoglobinopathies.
authors.forename: Chai Soon
authors.initials: CS
authors.lastname: Ngiu
mesh_terms: D016099:Endoscopy, Gastrointestinal / Q000009:adverse effects*; D004942:Esophagitis, Peptic / Q000175:diagnosis*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male