1. Section of Medical Genetics, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, Bari, Italy
2. Gastrointestinal Endoscopy, Umberto I Hospital, Altamura, Bari, Italy
3. Division of Internal Medicine, Clinica Medica A. Murri, Department of Biomedical Sciences and Human Oncology, University of Bari Medical School, Bari, Italy
4. Division of Medical Genetics, AAS n.5 Friuli Occidentale, Pordenone, Italy