Endoscopy, Table of Contents Endoscopy 2013; 45(01): 75DOI: 10.1055/s-0032-1325866 Letters to the editor © Georg Thieme Verlag KG Stuttgart · New YorkDelayed overt gastrointestinal bleeding after cold endoscopic biopsy F. Sarkis , H. Abu Daya , A. Sharara , A. Soweid , K. Barada Recommend Article Abstract Buy Article Full Text References References 1 Repici A, Hassa C, Vitetta E et al. Safety of cold polypectomy for <10 mm polyps at colonoscopy: a prospective multicenter study. Endoscopy 2012; 44: 27-31 2 Parra-Blanco A, Kaminaga N, Kojima T et al. Hemoclipping for postpolypectomy and postbiopsy colonic bleeding. Gastrointest Endosc 2000; 51: 37-41 3 Yousfi M, Gostout CJ, Baron TH et al. Postpolypectomy lower gastrointestinal bleeding: potential role of aspirin. Am J Gastroenterol 2004; 99: 1785-1789 4 Whitson MJ, Dikman AE, von Althann C et al. Is gastroduodenal biopsy safe in patients receiving aspirin and clopidogrel? a prospective, randomized study involving 630 biopsies. J Clin Gastroenterol 2011; 45: 228-233 5 Rogers BH, Silis SE, Nebel OT et al. Complications of flexible fiberoptic colonoscopy and polypectomy. Gastrointest Endosc 1975; 22: 73-77 6 Yao MD, von Rosenvinge EC, Groden C et al. Multiple endoscopic biopsies in research subjects: safety results from National Institute of Health series. Gastrointest Endosc 2009; 69: 906-910 7 Domellof L, Enander LK, Nilsson F. Bleeding as a complication to endoscopic biopsies from the gastric remnant after ulcer surgery. Scand J Gastroenterol 1983; 18: 951-954