Text and Data Mining valid from 2019-11-08
Received: 25 July 2019
Revised: 1 September 2019
Accepted: 27 September 2019
First Online: 8 November 2019
Compliance with ethical standards
: The scientific guarantor of this publication is Ihab R Kamel, M.D., Ph.D.
: The authors declare that they have no conflict of interest.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • Retrospective• Cross-sectional study diagnostic• Performed at one institution