Funding for this research was provided by:
Wenzhou Municipal Science and Technology Bureau (Y20180242)
Zhejiang Provincial Program for the Cultivation of High-Level Innovative Health Talents
Clinical Research Fundation of The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University (SAHoWMU-CR2018-06-214)
Received: 12 January 2020
Accepted: 30 April 2020
First Online: 14 May 2020
Ethics approval and consent to participate
: The study was approved by the medical ethical committee of The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University (Project number: LCKY2018–06). The written informed consent to participate was obtained from the parent or legal guardian of the children.
: Not applicable.
: The authors declared no competing interests.