Text and Data Mining valid from 2019-08-20
Received: 8 July 2019
Accepted: 22 July 2019
First Online: 20 August 2019
Ethics approval and consent to participate
: Ethical approval was obtained; REC (University of Jordan) reference: 5/11/30.
: The subject in Figs. InternalRef removed and InternalRef removed provided written consent for the images to be published.
: The authors declare that they have no competing interests.