title: [Commentary on the work of N.L. de Groot et al., pp. 731].
mesh_terms: D016099:Endoscopy, Gastrointestinal; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000453:epidemiology*; D006305:Health Status Indicators; D006801:Humans; D018570:Risk Assessment / Q000379:methods*