1. Center for Proteomics and Metabolomics, Leiden University Medical Center (LUMC), Postbus 9600, Leiden 2300 RC, The Netherlands
2. Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Padualaan 8, Utrecht 3584 CH, The Netherlands
3. Netherlands Proteomics Center, Padualaan 8, Utrecht 3584 CH, The Netherlands
4. Unit of Gastroenterology SOD2 (Strutture Organizzative Dipartimentali), Azienda Ospedaliero Universitaria (AOU) Careggi, Florence 50134, Italy
5. Gastroenterology Unit, San Jacopo Hospital, Pistoia 51100, Italy
6. Unit of Gastroenterology, IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico−Casa Sollievo della Sofferenza) Hospital, San Giovanni Rotondo 71013, Italy
7. Vita-Salute San Raffaele University Faculty of Medicine and Surgery, Milano 20132, Italy
8. IRCCS Policlinico San Danato, San Donato Milanese 20097, Italy