[1] Vrije Univ Amsterdam, Canc Ctr Amsterdam, Dept Hematol, Med Ctr, Amsterdam, Netherlands
[2] Vrije Univ Amsterdam, Canc Ctr Amsterdam, Dept Epidemiol & Biostat, Med Ctr, Amsterdam, Netherlands
[3] Christie NHS Fdn Trust, Dept Complementary Hlth & Wellbeing, Manchester, Lancs, England
[4] European Inst Oncol, Dept Haematooncol, Milan, Italy
[5] IOSI, Bellinzona, Switzerland
[6] Sheffield Teaching Hosp NHS Fdn Trust, Specialised Canc Serv, Sheffield, S Yorkshire, England
[7] Univ Sheffield, Dept Oncol & Metab, Sheffield, S Yorkshire, England
[8] Imperial Coll, Hammersmith Hosp, Dept Hematol, London, England
[9] Erasmus MC, Dept Radiat Oncol, Canc Inst, Rotterdam, Netherlands
[10] Isala Hosp, Dept Hematol, Zwolle, Netherlands
[11] Vrije Univ, Canc Ctr Amsterdam, Dept Clin Psychol, Amsterdam, Netherlands
[12] Vrije Univ Amsterdam, Dept Otolaryngol, Med Ctr, Amsterdam, Netherlands
[13] EMGO Inst, Canc Ctr Amsterdam, Amsterdam, Netherlands
[14] Univ Hosp Puerta de Hierro, Dept Hematol, Madrid, Spain