1. Department of Clinical Laboratory, The Fifth Hospital of Wuhan, Wuhan, China
2. Department of Ultrasound Medicine, Yunnan Cancer Hospital, the Third Affiliated Hospital of Kunming Medical University, Kunming, China
3. Department of Forensic Medicine, Kunming Medical University, Kunming, China
4. Department of Epidemiology and Biostatistics, School of Public Health, Kunming Medical University, Kunming, China
5. Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China