[1] Kantonsspital Baselland Liestal, Dept Oncol & Hematol, Liestal, Switzerland
[2] Univ Cote Azur, Ctr Hosp Univ Nice, Geriatr Coordinat Unit Geriatr Oncol UCOG, FHU OncoAge, Nice, France
[3] Delta Hosp, Chirec Hosp Grp, Comprehens Canc Ctr, Brussels, Belgium
[4] Hosp Gen Univ Gregorio Maranon, Hlth Res Inst Gregorio Maranon IiSGM, Geriatr Dept, Biopathol Aging Grp, Madrid, Spain
[5] Leeds Teaching Hosp Trust, Dept Elderly Med, Leeds, England