Zhang, Qin
Guo, Qi
Gui, Ming
Ren, Zhenhua
Hu, Bo
Lu, Ling
Deng, Fang
Funding for this research was provided by:
National Natural Science Foundation of China (81372693)
Natural Science Foundation of Anhui Province (1308085MH119)
Youth Training Program of First Affiliated Hospital of Anhui Medical University (2010KJ17)
Article History
Received: 5 December 2016
Accepted: 3 May 2018
First Online: 11 May 2018
Ethics approval and consent to participate
: The study protocol was approved by the Research Ethics Commission of the First Affiliated Hospital of Anhui Medical University. Permission letter that allowed access to the medical records for this study was obtained from Hospital Management Office. This study is a retrospective analysis of pre-existing data, and the informed consent of parents or guardians is not required.
: The authors declare that they have no competing interests.
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