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Authors
Lin, Zhou
Zheng, Jingjing
Chen, Weiling
Ding, Tingting
Yu, Wei
Xia, Bei
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Article History
Received: 15 August 2019
Accepted: 2 March 2020
First Online: 12 March 2020
Ethics approval and consent to participate
: This study was approved by the Shenzhen children’s hospital Affiliated to Medical College of Shantou University in agreement with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. All informed consents were signed and obtained from the patients’ parents.
: Not applicable.
: The authors declare that they have no competing interests.
