1. Medical Laboratory, Shenzhen Luohu People's Hospital, Shenzhen, Guangdong 518001, P.R. China
2. Medical College, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
3. Department of General Surgery, Shenzhen Children's Hospital, Shenzhen, Guangdong 518026, P.R. China
4. Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523000, P.R. China