Affiliation: | 1. Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain;2. Department of Haematology, Complejo Hospitalario de Navarra, Pamplona, Spain;3. Department of Pathology, Complejo Hospitalario de Navarra, Pamplona, Spain;4. Department of Internal Medicine, Complejo Hospitalario de Navarra, Pamplona, Spain |