Received: 12 February 2019
Accepted: 21 May 2019
First Online: 30 May 2019
Ethics approval and consent to participate
: Our study was approved by the Ethics Committee of the PLA 960th hospital. All adult patients and parents for children who participate in the study provided written informed consent. A copy of the consent form is available for review.
: Written informed consent for publication of the pictures was obtained from parents of the children who appear in the figures. And the participants (included adult patients and parents for the children patients) gave written informed consent for the publication of their details in the manuscript. A copy of the written informed consent is available for review by the editor.
: No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this research.