Single-use versus reusable gastroscopes for the initial assessment of patients with upper gastrointestinal bleeding: a prospective randomized noninferiority trial. - Römmele, Christoph; Ayoub, Mousa; Scheppach, Markus Wolfgang; Muzalyova, Anna; Wanzl, Julia; Tadic, Vidan; Braun, Georg; Weber, Tobias; Roser, David; Nagl, Sandra; Messmann, Helmut; Ebigbo, Alanna (Endoscopy, 2026)