[1
]
Department of Gastroenterology, Instituto Portugues de Oncologia, Porto, Portugal.
[2
]
Department of Digestive Diseases, Hôpital Edouard Herriot, Lyon, France.
[3
]
Department of Gastroenterology, Istituto Clinico Humanitas, Milan, Italy.
[4
]
Institute for Pathology, Klinikum Bayreuth, Bayreuth, Germany.
[5
]
Department of Gastroenterology, National Cancer Institute, Bari, Italy.
[6
]
Gastroenterology Unit, Ospedale Valduce, Como, Italy.
[7
]
University Clinic of Internal Medicine I, Salzburg, Austria.
[8
]
Department of Gastroenterology, Queen Alexandra Hospital, Portsmouth, UK.
[9
]
Pomeranian Medical University, Szczecin, Poland.
[10
]
Department Gastroenterology and Endoscopy, Ospedale di Sanremo, Sanremo, Italy.
[11
]
Erasmus Medical Center, Rotterdam, The Netherlands.
[12
]
Institute of Pathology, Medizinische Universität Graz, Graz, Austria.
[13
]
Bispebjerg Hospital, Copenhagen, Denmark.
[14
]
Department of Internal Medicine III, Klinikum Augsburg, Augsburg, Germany.
[15
]
Department of Surgery, University Hospital of Turin, Turin, Italy.
[16
]
Department of Internal Medicine, Evangelisches Krankenhaus Düsseldorf, Düsseldorf,
Germany.
[17
]
Cliniques universitaires St-Luc, Université catholique de Louvain, Brussels, Belgium.
[18
]
Department of Pathology, Università di Padova, Padova, Italy.
[19
]
Wolfson Unit for Endoscopy, St. Mark's Hospital & Imperial College, London, UK.
[20
]
Service d'hépato-gastroenterologie, Hôpital de la Cavale-Blanche, Brest, France.
[21
]
GastroZentrum, Klinik Hirslanden, Zurich, Switzerland.
[22
]
Endoscopy Department, Yaroslavl Regional Cancer Hospital, Yaroslavl, Russia.
[23
]
Gedyt Endoscopy Center, Buenos Aires, Argentina.
[24
]
Department of Gastroenterology, Nuovo Regina Margherita Hospital, Rome, Italy.