1. Department of Pediatric Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
2. Department of Clinical Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
3. Department of Clinical Laboratory, People’s Hospital of Rizhao, Rizhao, Shandong, China
4. Department of Internal Medicine, Community Health Service Center, Zao Yuan Street Office of Zhangqiu District, Jinan, Shandong, China
5. Department of Pediatrics, The People’s Hospital of Zhangqiu Area, Jinan, Shandong, China
6. Department of Blood Transfusion, Yankuang New Journey General Hospital, Zoucheng, Shandong, China