[1] Cantonal Hosp Graubunden, Oncol Hematol, Chur, Switzerland
[2] Cantonal Hosp Bellinzona, Oncol, Bellinzona, Switzerland
[3] SAKK, Coordinating Ctr, Bern, Switzerland
[4] Cantonal Hosp Baden, Oncol Hematol, Baden, Switzerland
[5] Geneva Univ Hosp, Oncol, Geneva, Switzerland
[6] Hosp Thun, Oncol Hematol, Thun, Switzerland
[7] Cantonal Hosp Graubunden, Tumor & Res Ctr, Chur, Switzerland
[8] Cantonal Hosp St Gallen, Oncol Hematol, St Gallen, Switzerland