Prediction of a positive circumferential resection margin at surgery following neoadjuvant chemotherapy for adenocarcinoma of the oesophagus oleh W. R. C. Knight, C. Yip, W. Wulaningsih, A. Jacques, N. Griffin, J. Zylstra, M. Van Hemelrijck, N. Maisey, A. Gaya, C. R. Baker, M. Kelly, J. A. Gossage, J. Lagergren, D. Landau, V. Goh, A. R. Davies, on behalf of the Guy's and St Thomas' Oesophago‐Gastric Research Group, S. Ngan, A. Qureshi, H. Deere, M. Green, F. Chang, U. Mahadeva, B. Gill‐Barman, S. George, J. Dunn, S. Zeki, J. Meenan, O. Hynes, G. Tham, C. Iezzi