[1] Cochrane Hematol Malignancies Grp, Cologne, Germany
[2] German Cochrane Ctr, Dept Med Biometry & Stat, Freiburg, Germany
[3] Inst Social & Prevent Med, Bern, Switzerland
[4] Hop Henri Mondor, Lymphoid Malignancies Unit, F-94010 Creteil, France
[5] Univ Estadual Campinas, Campinas, SP, Brazil
[6] Hosp St Louis, INSERM, U728, Dept Hematol Oncol, Paris, France
[7] Chulalongkorn Univ, Div Hematol, Dept Med, Bangkok, Thailand
[8] St Bernward Hosp, Dept Hematol, Hildesheim, Germany
[9] Univ Groningen, Univ Med Ctr Groningen, Dept Hematol, NL-9713 AV Groningen, Netherlands
[10] Univ Roma La Sapienza, Dept Cellular Biotechnol & Hematol, Rome, Italy
[11] Hop Haut Eveque, Serv Malad Sang, Bordeaux, France
[12] Isala Clin, Zwolle, Netherlands
[13] Univ San Giovanni Battista, Sect Hematol, Dept Oncol, Turin, Italy
[14] Univ Hosp Cologne, Cochrane Hematol Malignancies Grp, Cologne, Germany