Appropriateness of colonoscopy in Europe (EPAGE II) – Functional bowel disorders: pain, constipation and bloating - Schusselé Filliettaz, S.; Gonvers, J.-J.; Peytremann-Bridevaux, I.; Arditi, C.; Delvaux, M.; Numans, M. E.; Lorenzo-Zúñiga, V.; Dubois, R. W.; Juillerat, P.; Burnand, B.; Pittet, V.; Vader, J.-P.; Froehlich, F.; null (Endoscopy, 2009)