1. Department of Gynaecology, Jinan City People’s Hospital, Jinan People’s Hospital Affiliated to Shandong First Medical University, Jinan, 271100, China
2. ICU Department, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao, 266000, China
3. Department of Outpatient, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao, 266042, China
4. Department of Health Management, Jinan Zhangqiu District People’s Hospital, Jinan, 250200, China
5. Department of Ultrasound, Jinan Zhangqiu District People’s Hospital, Jinan, 250200, China
6. Health Examination Department, Yantaishan Hospital, Yantai, 264003, China