1. Department of Pediatrics, Yantaishan Hospital, Yantai 264000, Shandong, China
2. Department of Pediatrics (I), Jiyang People’s Hospital, Jinan 251400, Shandong, China
3. Department of Traditional Chinese Medicine, Qingdao Eighth People’s Hospital, Qingdao 266000, Shandong, China
4. Department of Endocrinology, Zhangqiu District People’s Hospital, Jinan 250200, Shandong, China
5. Department of Ultrasound, Zhangqiu District People’s Hospital, Jinan 250200, Shandong, China
6. Infirmary of Veteran Cadre Rest Center, Zhangqiu District People’s Hospital, Jinan 250200, Shandong, China