Endoscopy, Table of Contents Endoscopy 2012; 44(07): 716DOI: 10.1055/s-0032-1309388 Letters to the editor © Georg Thieme Verlag KG Stuttgart · New YorkQuality of colonoscopy by gastroenterology and surgical trainees Authors P. P. Grimminger A. H. Hölscher Recommend Article Abstract Buy Article(opens in new window) Full Text References References 1 Leyden JE, Doherty GA, Hanley A et al. Quality of colonoscopy performance among gastroenterology and surgical trainees: a need for common training standards for all trainees?. Endoscopy 2011; 43: 935-940