[1] Azienda Ospedaliero Univ Parma, Med & Surg Breast Unit, Parma, Italy
[2] Grp Oncol Italiano Ric Clin, Med, Parma, Italy
[3] Royal Marsden NHS Fdn Trust, Breast Unit, Dept Med, London, England
[4] Royal Marsden NHS Fdn Trust, Dept Med, London, England
[5] UCL, Med, London, England