Article History
Received: 2 April 2018
Accepted: 15 August 2018
First Online: 29 August 2018
Ethics approval and consent to participate
: The Scientific and Experimental Research Medical Ethics Committee of the First Affiliated Hospital of Zhengzhou University approved this study. All analysed samples were obtained after signed informed consent was provided. For all the minor probands, their parents consent for their participation in this study on their behalf. For the adult patients, all of them consent for their participation.
: All analysed samples were obtained after signed informed consent was provided.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.