1. Department of Clinical Laboratory, Hainan Women and Children′s Medical Center, Haikou 570206, China
2. School of Tropical Medicine, Hainan Medical University, Haikou 571199, China
3. Department of Biochemistry and Molecular Biology, Hainan Medical University, Haikou 571199, China
4. Department of Clinical Laboratory, The First Affiliated Hospital of Hainan Medical University, Haikou 570102, China