TY - JOUR AU - Lin, O S TI - Performing colonoscopy in elderly and very elderly patients: Risks, costs and benefits JO - World J Gastrointest Endosc VL - 6 PY - 2014 DO - 10.4253/wjge.v6.i6.220 L3 - PubMed-ID: 24932373 SP - 220 EP - 226 ER -