1 Department of Science and Education, Shengli Oilfield Central Hospital, Dongying, 257034, PR China; National Standardized Residency Training Base, Shengli Oilfield Central Hospital, Dongying, 257034, PR China.
2 Telemedicine Center, Shengli Oilfield Central Hospital, Dongying, 257034, PR China.
3 National Standardized Residency Training Base, Shengli Oilfield Central Hospital, Dongying, 257034, PR China; Department of Pediatric Surgery, Shengli Oilfield Central Hospital, Dongying, 257034, PR China. Electronic address: share19852003@163.com.