1 H. La Paz, Madrid, Spain

2 H. la paz, Madrid, Spain

3 Hospital Universitario La Paz. Dept. de Gastroenterología, Madrid, Spain

4 Hospital la Paz, Madrid, Spain

5 Hospital La Paz, Madrid, Spain

6 Hospital La Paz Gastroenterology, Madrid, Spain

1 Università Vita e Salute San Raffaele, Milan, Italy

2 Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy

1 Sapienza University of Rome, Rome, Italy

2 San Camillo de Lellis Hospital, Rieti, Italy

3 Istituto Superiore di Sanità, Rome, Italy

4 Irrcs Humanitas Research Hospital, Rozzano, Italy

1 APC Microbiome, University College Cork, Cork, Ireland

1 Karolinska Institutet, Stockholm, Sweden

2 Sahlgrenska Academy, Gothenburg, Sweden

3 Uppsala University, Uppsala, Sweden

4 Örebro University, Örebro, Sweden

1 Linköping University, Linköping, Sweden

2 University Hospital Schleswig-Holstein and Christian- Albrechts-University Kiel, Kiel, Germany|||University of Valladolid and Consejo Superior de Investigaciones Científicas (CSIC), Valladolid, Spain

3 Linköping University, Linköping, Sweden|||Linköping University, Linköping, Sweden

4 Lithuanian University of Health Sciences, Kaunas, Lithuania

1 Nordic Bioscience A/S, Herlev, Denmark

2 Oslo University Hospital, Oslo, Norway|||University of Oslo, Oslo, Norway|||Lovisenberg Diakonale Hospital, Oslo, Norway

3 Örebro University, Örebro, Sweden

4 University of Oslo, Oslo, Norway

5 University of Oslo, Oslo, Norway|||Oslo University Hospital, Oslo, Norway

6 University of Oslo, Oslo, Norway|||Sykehuset i Vestfold Med. Clinic, Tønsberg, Norway

7 Lovisenberg Diakonale Hospital, Oslo, Norway|||University of Oslo, Oslo, Norway|||Lovisenberg Diakonale Hospital, Oslo, Norway

8 Sykehuset i Vestfold Med. Clinic, Tønsberg, Norway

9 Akershus University Hospital, Nordbyhagen, Norway|||University of Oslo, Oslo, Norway

10 Lovisenberg Diakonale Hospital, Oslo, Norway

11 University of Oslo, Oslo, Norway|||University of Oslo, Oslo, Norway