TY - JOUR AU - Holme, O; de Lange, T; Stallemo, A TI - Routine vs. on-demand analgesia in colonoscopy: a randomized clinical trial JO - Endoscopy VL - 48 PY - 2016 DO - 10.1055/s-0042-108433 L3 - PubMed-ID: 27305424 SP - 823 EP - 828 N1 - et al. ER -