TY - JOUR AN - 19 AU - May,A. AU - Nachbar,L. AU - Ell,C. TI - Push-and-Pull Enteroscopy using a single-balloon technique for difficult colonoscopy. JO - Endoscopy PY - 2006 VL - 38 SP - 395-398 M2 - 395 DO - 10.1055/s-2006-925063 L3 - PubMed-ID: 16680641 ER -