Received: 25 May 2019
Accepted: 11 February 2020
First Online: 12 March 2020
Ethics approval and consent to participate
: Ethics approval was obtained on August 28, 2017, from the Ethics Committee on Research in University of Tehran, Iran (IR.UT.REC.1395026). Before starting the project, all participants will be asked to complete the written consent form.
: Written informed consent was obtained from the person for publication of his accompanying images in this manuscript.
: The authors declare that they have no competing interests.