Received: 24 June 2021
Accepted: 3 November 2021
First Online: 24 November 2021
: We obtained informed consent from participants in written form. Ethics Committee of Ignace DEEN CHU chaired by Prof. M Koulibaly Director General of the hospital committee’s reference number: N°D/99/078/ CNERS /HNID on January 1st, 2011.
: For the images, we obtained the consent of the parents of the children.
: The authors declare that they no competing interests<b>.</b>