1. Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn, German CLL Study Group, University Hospital Cologne, Cologne, Germany;
2. Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada;
3. Hemomed Oncologia e Hematologia, IEP São Lucas, São Paulo, Brazil;
4. Silesian Medical University, Katowice, Poland;
5. Hôpital Haut-Lévêque, Pessac, France;
6. Universitaire Ziekenhuizen Leuven, Leuven, Belgium;
7. Hematology Department, Hospital Universitario La Princesa, IIS-IP, Madrid, Spain;
8. Plymouth University Medical School, Plymouth, UK;
9. John Theurer Cancer Center at Hackensack University Medical Center, Hackensack, NJ, USA;
10. Janssen Global Services, Raritan, NJ, USA;
11. Janssen EU HEMAR Statistics & Modelling, Beerse, Belgium;
12. Janssen Global Oncology, Raritan, NJ, USA;
13. Janssen Research & Development, High Wycombe, UK;
14. Mayo Clinic Cancer Center, Jacksonville, FL, USA