Chen, Xiao
Wang, Jianshe
Lu, Yi
Xie, Xinbao
Gu, Ying
Latour, Jos M.
Zhang, Yuxia http://orcid.org/0000-0002-3102-6727
Funding for this research was provided by:
Shanghai Municipal Health Bureau (2015ZB0302)
Article History
Received: 18 January 2020
Accepted: 12 August 2020
First Online: 24 August 2020
Ethics approval and consent to participate
: The study was approved by the Research Ethics Committee of the Children’s Hospital of Fudan University (approval number 2014–143) and was performed in accordance with the ethical standards of the 1964 Declaration of Helsinki and its later amendments. Informed consent was obtained after providing information sheet and verbally explaining the study aims and procedures. Participation was voluntary and each parent signed a written consent form.
: Not applicable.
: The authors declare that they have no competing interests.