1. Institute of Pathogenic Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China (mainland)
2. Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu, China (mainland)
3. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, China (mainland)
4. Department of Physiology, School of Basic Medical Sciences, Qinghai University, Xining, Qinghai, China (mainland)