Different strategies of sequential and combination chemotherapy for patients with poor prognosis advanced colorectal cancer (MRC FOCUS): a randomised controlled trial

Authors: Michel Seymour, Tim Maughan, Jonathan A. Ledermann, C. Topham, R.D. James, Stephen J. Gwyther, David B. Smith, Stephen F Shepherd, Anthony Maraveyas, David Ferry, Angela Meade, Lindsay C Thompson, Gareth Griffiths, Mahesh Parmar, Richard Stephens - The Lancet 2007 cited by 568