1. Hospital Infection Control Office, Rizhao People’s Hospital, Rizhao 276800, China
2. China-Canada International Health Management Center, Rizhao Hospital of TCM, Rizhao 276800, China
3. Department of Clinical Laboratory, Affiliated Qingdao Central Hospital, Qingdao University, Qingdao 266042, China
4. Department of Anesthesia, Zhangqiu District People’s Hospital, Jinan 250200, China
5. Department of Public Health, Zhangqiu District People’s Hospital, Jinan 250200, China
6. Medical Laboratory Center, Yantai Yuhuangding Hospital, Yantai 264000, China