Author information:
(1)Translational Research Center for Gastrointestinal Disorders (TARGID), 
University of Leuven, Leuven, Belgium.
(2)Vesalius Research Center, VIB, Leuven University, Leuven, Belgium Laboratory 
for Translational Genetics, University of Leuven, Leuven, Belgium.
(3)Department of Genomics, Life & Brain Center, University of Bonn, Bonn, 
Germany Institute of Human Genetics, University of Bonn, Bonn, Germany.
(4)Immunology and Gastroenterology Departments, Instituto de Investigacion 
Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain.
(5)Department of Gastroenterology and Hepatology, Academic Medical Centre, 
Amsterdam, The Netherlands.
(6)Division of Gastroenterology, IRCCS 'Casa Sollievo della Sofferenza' 
Hospital, San Giovanni Rotondo, Italy Unit of Gastroenterology SOD2, Azienda 
Ospedaliera Universitaria, Careggi, Firenze, Italy.
(7)Division of Gastroenterology, IRCCS 'Casa Sollievo della Sofferenza' 
Hospital, San Giovanni Rotondo, Italy.
(8)Department of Genomics, Life & Brain Center, University of Bonn, Bonn, 
Germany Institute of Human Genetics, University of Bonn, Bonn, Germany Institute 
for Genomic Mathematics, University of Bonn, Bonn, Germany Department of 
Biostatistics, Harvard School of Public Health, Boston, USA.
(9)Department of Gastroenterology, German Clinic of Diagnostics, Wiesbaden, 
Germany.
(10)Department of General, Visceral and Transplant Surgery, University Medical 
Center of Mainz, Mainz, Germany.
(11)Department of Gastroenterology, Humanitas Clinical and Research 
Center-Istituto Clinico Humanitas IRCCS, Milan, Italy.
(12)Department of Surgery, Oncology and Gastroenterology, University of Padova, 
Padova, Italy.
(13)Gastroenterology Unit, Department of Clinical and Experimental Medicine, 
Federico II University, Napoli, Italy.
(14)Institute for Medical Biometry, Informatics and Epidemiology, University of 
Bonn, Bonn, Germany.