1. Department of Gastroenterology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
2. Department of Pathology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
3. Department of Ophthalmology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
4. Department of Radiology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain