ACKNOWLEDGEMENTS
We would like to express our sincere thanks Dr PL Ho, Dr Kelvin To and Dr Sally Wong and their team from Department of Microbiology, Queen Mary Hospital / The University of Hong Kong and Dr YL Lam, Dr WY Ho, Dr TW Lau, Dr Noah So and their team from Department of Orthopedic and Traumatology, Queen Mary Hospital / Duchess of Kent Hospital for their expert opinion and patient management.