Role of adjuvant radiotherapy following neo-adjuvant chemotherapy (NACT) and surgery in oesophageal cancer - a multi-centre retrospective cohort study - Teoh, S; Virdee, P; Mason, J; Warner, N; Blesing, C; Patel, K; Marshall, R; Maynard, N; Sgromo, B; Gillies, R; Streets, C; Barham, C; et al. (Oxford University Press, 2016)