A prospective phase II study of pre-operative chemotherapy then short-course radiotherapy for high risk rectal cancer: COPERNICUS by Gollins, S, West, N, Sebag-Montefiore, D, Susnerwala, S, Falk, S, Brown, N, Saunders, M, Quirke, P, Ray, R, Parsons, P, Griffiths, G, Maughan, T, Adams, R, Hurt, C