[1] Univ Hertfordshire, Sch Life & Med Sci, Hatfield, Herts, England
[2] UCL, Inst Canc, London, England
[3] Cardiff & Vale Univ Hlth Board, Cardiff, S Glam, Wales
[4] Patient Res Partner, Milton Keynes, Bucks, England
[5] Azienda Osped, Haematol Unit, Reggio Di Calabria, Italy
[6] Natl Med Surg Ctr, St Petersburg, Russia
[7] Multinat Ctr Qual Life Res, St Petersburg, Russia