1. London Health Sciences Centre, London, Ontario, Canada
2. Department of Epidemiology, University of California, Irvine, California, USA
3. Department of Epidemiology & Biostatistics, Western University, London, Ontario, Canada
4. Department of Veterans Affairs Long Beach Healthcare System, Long Beach, and Division of Hematology/Oncology, Department of Medicine, University of California, Irvine, California, USA
5. Southern Iron Disorders Center, Birmingham, Alabama, Canada
6. Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, USA