TY - JOUR AU - van Vliet, E P TI - Staging investigations for oesophageal cancer: a meta-analysis JO - Br J Cancer VL - 98 PY - 2008 DO - 10.1038/sj.bjc.6604200 L3 - PubMed-ID: 18212745 SP - 547 EP - 557 N1 - et al. ER -