TY - JOUR AU - Ferreira, L EVVC; Baron, T H TI - Comparison of safety and efficacy of ERCP performed with the patient in supine and prone positions JO - Gastrointest Endosc VL - 67 PY - 2008 DO - 10.1016/j.gie.2007.10.029 L3 - PubMed-ID: 18206877 SP - 1037 EP - 1043 ER -