280
Participants
Start Date
July 31, 2016
Primary Completion Date
December 31, 2017
Study Completion Date
December 31, 2017
High-definition white-light endoscopy
The intervention is do not perform chromoendoscopy
María Pellisé. MD. PhD., Barcelona
Fundacion Clinic per a la Recerca Biomédica
OTHER
Hospital Clinic of Barcelona
OTHER