1. Kangda College of Nanjing Medical University, Lianyungang 222000, Jiangsu, China
2. Department of Laboratory Medicine, Tianjin Peace District Obstetrics and Gynecology Hospital, Tianjin, 300020, China
3. Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education), School of Chemistry and Material Science, Shanxi Normal University, Taiyuan 030031, Shanxi, China