1. Chemical Pathology Laboratory, Department of Pathology, Hong Kong Children’s Hospital, Kowloon Bay, Hong Kong; Chemical Pathology Laboratory, Department of Pathology, Princess Margaret Hospital, Laichikok, Hong Kong
2. Chemical Pathology Laboratory, Department of Pathology, Princess Margaret Hospital, Laichikok, Hong Kong; Chemical Pathology Laboratory, Department of Pathology, Queen Elizabeth Hospital, Jordan, Hong Kong
3. Chemical Pathology Laboratory, Department of Pathology, Queen Elizabeth Hospital, Jordan, Hong Kong
4. Chemical Pathology Laboratory, Department of Pathology, Princess Margaret Hospital, Laichikok, Hong Kong
5. Chemical Pathology Laboratory, Department of Pathology, Tuen Mun Hospital, Tuen Mun, Hong Kong
6. Clinical Pathology Laboratory, Grantham Hospital, Wong Chuk Hang, Hong Kong
7. Chemical Pathology Laboratory, Department of Pathology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong