Carmen Garcia-Gavilan, MaCarmen Lopez-Vega, MaMa Mendez-Sanchez, Isabel2023-02-122023-02-122017-07-011130-0108http://hdl.handle.net/10668/19408enUlcerative colitisProximal affectationUlcerative colitis with gastric and duodenal involvementletteropen access10.17235/reed.2017.4685/20162340-4167https://doi.org/10.17235/reed.2017.4685/2016405483500013