1. University of Texas MD Anderson Cancer Center Houston TX USA
2. German CLL Study Group University of Cologne Cologne Germany
3. University of Rochester Cancer Center Rochester NY USA
4. Centre Hospitalier Universitaire Bordeaux Bordeaux France
5. Memorial Sloan Kettering Cancer Center New York City NYUSA
6. The Ohio State University Columbus OH USA
7. Pharmacyclics LLC, an AbbVie Company Sunnyvale CA USA
8. Azienda Ospedaliera Niguarda Cà Granda Milan Italy