[1] Univ Zurich, Zurich, Switzerland
[2] Inst Hematol, Bologna, Italy
[3] Univ Hosp, Grenoble, France
[4] SAKK Coordinating Ctr, Bern, Switzerland
[5] Univ Hosp HUG, Geneva, Switzerland
[6] Kantonsspital, St Gallen, Switzerland
[7] Kantonsspital, Aarau, Switzerland
[8] Kantonsspital, Olten, Switzerland
[9] IEO Oncohematol Dept, Milan, Italy
[10] OnkoZentrum Zurich, Zurich, Switzerland
[11] Univ Hosp, Bordeaux, France
[12] Univ Hosp, Tours, France
[13] Oncol Inst So Switzerland IOSI, Expt Oncol Lab, Bellinzona, Switzerland
[14] Lymphoma Unit, Bellinzona, Switzerland
[15] Univ Hosp CHUV, Lausanne, Switzerland