1. The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi’an, China;
2. The Xinjiang Uygur Autonomous Region Maternal and Child Health Care Hospital, Urumqi, China;
3. The National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, China;
4. Institution of Basic Medical Science, Xi'an Medical University, Xi'an, China