[1] Helsinki Univ Hosp, Comprehens Canc Ctr, Helsinki, Finland
[2] Turku Univ Hosp, Turku, Finland
[3] FICAN West Canc Ctr, Turku, Finland
[4] Oulu Univ Hosp, Dept Oncol & Radiotherapy, Oulu, Finland
[5] Kuopio Univ Hosp, Dept Oncol, Kuopio, Finland
[6] Tampere Univ Hosp, TAYS Canc Ctr, Tampere, Finland
[7] Tampere Univ, Tampere, Finland
[8] Tampere Univ, Cent Finland Canc Ctr, FICAN Mid, Tampere, Finland
[9] Tampere Univ Hosp, Tampere, Finland
[10] Oulu Univ Hosp, Northern Finland Canc Ctr, FICAN North, Oulu, Finland
[11] Univ Oulu, Oulu, Finland
[12] Univ Eastern Finland, Eastern Finland Canc Ctr, FICAN East, Kuopio, Finland
[13] Kuopio Univ Hosp, Kuopio, Finland
[14] Helsinki Univ Hosp, Southern Finland Canc Ctr, FICAN South, Helsinki, Finland
[15] Univ Helsinki, Helsinki, Finland