[1
]
Colorectal Cancer Screening Programme Coordination Center, Bilbao, Spain.
[2
]
BioCruces Health Research Institute, Barakaldo, Spain.
[3
]
Osteba, Basque Office for Health Technology Assessment, Ministry for Health, Vitoria-Gasteiz,
Spain.
[4
]
Araba County, Osakidetza-Basque Health Service, Araba, Spain.
[5
]
Hospital Universitario Donostia/Instituto Biodonostia, Red de Investigación en Servicios
de Salud en Enfermedades Crónicas (REDISSEC), San Sebastián, Spain.
[6
]
Gastroenterology Department, Instituto Biodonostia, University of Basque Country (UPV/EHU),
Centro de Investigación Biomédica en Red de Enfermedades Hepaticas y Digestivas (CIBERehd),
San Sebastián, Spain.