[1] Royal Marsden Hosp, London SW3 6JJ, England
[2] Christie Hosp NHS Fdn Trust, Manchester, Lancs, England
[3] Inst Canc Res, London SW3 6JB, England
[4] St Marys Hosp, Manchester M13 0JH, Lancs, England
[5] Inst Canc Res, Breakthrough Breast Canc Res Ctr, London SW3 6JB, England
[6] Christie Hosp, Manchester, Lancs, England