1 Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital RWTH Aachen, Aachen, Germany.
2 Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples, Italy.
3 Department of Translational Medicine, Federico II University, Naples, Italy.
4 Scuola Superiore Meridionale (SSM, School of Advanced Studies), Genomics and Experimental Medicine Program, University of Naples Federico II, Naples, Italy.