Li, Qianwen
Wang, Yimeng
Xue, Wenyao
Bian, Zhengying
Gao, Yue
Zeng, Yu
Tang, Lei
Tang, Tiejun
Tian, Ye
Guo, Wei
Article History
Received: 14 November 2019
Accepted: 26 April 2020
First Online: 9 June 2020
Competing interests
: The authors declare no competing interests.
: Written informed consent was required and obtained from all parents and legal guardians of the participating children. We also applied for the ethical consent of the Children’s Hospital of Nanjing Medical University.