Received: 4 October 2019
Accepted: 10 February 2020
First Online: 14 February 2020
Ethics approval and consent to participate
: The Institutional Ethics Committee of the Shahid sadoughi University of Medical Sciences of Yazd approved the study design (IR.SSU.MEDICINE.REC.1396.220) and written informed consent was obtained from each participant before the collection of tissue samples.
: Not applicable.
: The authors declare that they have no competing interests.