Mitomycin or cisplatin chemoradiation with or without maintenance chemotherapy for treatment of squamous-cell carcinoma of the anus (ACT II): a randomised, phase 3, open-label, 2 ×... by James, R, Glynne-Jones, R, Meadows, H, Cunningham, D, Myint, A, Saunders, M, Maughan, T, McDonald, A, Essapen, S, Leslie, M, Falk, S, Wilson, C, Gollins, S, Begum, R, Ledermann, J, Kadalayil, L, Sebag-Montefiore, D