1. Department of Clinical Laboratory, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510415, China
2. Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
3. Department of Clinical Laboratory, Zhuhai People’s Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai 519000, China