1. Department of Pediatrics, Women and Children's Hospital, Chongqing Medical University, Chongqing, People's Republic of China.
2. Department of Pediatrics, Chongqing Health Center for Women and Children, Chongqing, People's Republic of China.
3. Department of Gastrointestinal Surgery, Renshou People's Hospital, Meishan, People's Republic of China.
4. School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, People's Republic of China.