N Engl J Med 2014 Mar 8;370(12):1101-10. Epub 2014 Jan 8.
From the German CLL Study Group, Department I of Internal Medicine, Center of Integrated Oncology Cologne-Bonn, University Hospital Cologne, Cologne (V.G., K.F., A.E., B.E., C.M.W., K.-A.K., M.H.), the Department for Geriatric Medicine and Research, St. Marien Hospital and University of Cologne, Cologne (V.G.), Institute of Medical Statistics and Epidemiology, Technical University Munich, Munich (R.B.), Klinikum Schwabing, Munich (C.M.W.), private oncology practice, Dresden (T.I.), Medical Department II, University of Schleswig-Holstein, City Hospital Kiel, Kiel (M.R., M.K.), the Department of Internal Medicine III, Ulm University, Ulm (S.S., H.D.), and Cluster of Excellence "Cellular Stress Responses in Aging-Associated Diseases" (CECAD), University of Cologne, Cologne (M.H.) - all in Germany; Penza Regional Oncology Dispensary, Penza (T.C.), and Regional Clinical Hospital N.A. Semashko, Nizhny Novgorod (O.S.) - both in Russia; Servicio De Hematologia, Hospital Universitario 12 De Octubre, Madrid (J.S.); Hôpital Haut Lévêque, Bordeaux, Pessac, France (M.-S.D.); the Department of Haematology, Monash Medical Centre, Clayton, Australia (S.O.); University of Calgary, Calgary, AB, Canada (C.J.O.); the Department of Immunology, Erasmus Medical Center Rotterdam, Rotterdam, the Netherlands (A.W.L.); F. Hoffmann-La Roche, Basel, Switzerland (E.A.); F. Hoffmann-La Roche, Welwyn, United Kingdom (K.H.); and Genentech, South San Francisco, CA (M.W.).