1. Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
2. Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
3. Key laboratory of Digital Technology in Medical Diagnostics of Zhejiang Province, Dian Diagnostics Group Co., Ltd, Hangzhou, China
4. Hangzhou D.A. Medical laboratory, Hangzhou, China