1. Amsterdam University Medical Centers, Cancer Center Amsterdam, University of Amsterdam, on behalf of the HOVON CLL Working Group, Amsterdam
2. Tom Baker Cancer Centre, Calgary, Alberta, Canada
3. Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, Barcelona
4. Addenbrooke’s Hospital, Cambridge, UK
5. St James’s Hospital, Leeds, UK
6. Albert Schweitzer Hospital, Dordrecht, Netherlands
7. Sheba Medical Center, Ramat Gan, Israel
8. Universitaire Ziekenhuizen Leuven, Leuven, Belgium
9. Karolinska University Hospital, Stockholm
10. Medical University of Łódź, Copernicus Memorial Hospital, Łódź, Poland
11. University Hospital Hradec Králové, Hradec Králové, Czech Republic
12. Norton Cancer Institute, Louisville, KY
13. Russian Scientific Research Institute of Hematology and Transfusiology, St. Petersburg, Russia
14. S.P. Botkin Moscow City Clinical Hospital, Moscow
15. Institut Universitaire du Cancer de Toulouse-Oncopole, Toulouse, France
16. Janssen Research & Development, Raritan, NJ
17. Janssen Research & Development, San Diego, CA
18. Janssen Research & Development, Düsseldorf, Germany
19. Janssen Research & Development, Beerse, Belgium
20. Rigshospitalet Copenhagen University Hospital, Copenhagen