Text and Data Mining valid from 2020-01-13
Received: 10 June 2019
Accepted: 24 December 2019
First Online: 13 January 2020
Compliance with ethical standards
: Miss Fatemeh Hosseinzadeh as a first author, and Dr Ebrahim Nasiri as a corresponding author and Dr Tahereh Behroozi as a surgeon and third author have no conflicts of interest or financial ties to disclose.