1. Department of Anatomic and Cellular Pathology Prince of Wales Hospital, The Chinese University of Hong Kong Sha Tin Hong Kong China
2. Department of Pathology Memorial Sloan Kettering Cancer Center New York New York USA
3. Department of Orthopedics and Traumatology Prince of Wales Hospital, The Chinese University of Hong Kong Sha Tin Hong Kong China
4. Department of Pathology and Laboratory Medicine Mount Sinai Health System Toronto Ontario Canada
5. Department of Laboratory Medicine and Pathobiology University of Toronto Toronto Ontario Canada
6. Department of Surgery Mount Sinai Health System Toronto Ontario Canada
7. Division of Orthopaedics, Department of Surgery University of Toronto Toronto Ontario Canada