1. Faculty of Medical Laboratory Science, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200020, P.R. China
2. Department of Clinical Laboratory, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, P.R. China
3. Department of Human Anatomy, Guangxi Medical University, Nanning, Guangxi 530021, P.R. China