1. Department of Clinical Epidemiology & Biostatistics McMaster University Hamilton ON Canada
2. Geriatrics Foundation IRCCS Ca' Granda – Ospedale Maggiore Policlinico & Department of Clinical Sciences and Community Health University of Milan Milan Italy
3. Biostatistics Unit St Joseph's Healthcare—Hamilton Hamilton ON Canada
4. Institute of Experimental Haematology and Transfusion Medicine University Clinic Bonn Bonn Germany
5. Global Medical Affairs Baxter Healthcare Corporation Westlake Village California USA