Alotaibi, Khalid M. http://orcid.org/0000-0002-5588-2587
Article History
Received: 8 February 2019
Accepted: 16 April 2019
First Online: 29 April 2019
Compliance with ethical standards
:
: The author has no conflict of interest to declare. The study received no financial support. All data are available for review upon request. As this was a retrospective study, consent was not obtained. This study has been approved by the Imam Abdulrahman bin Faisal University ethics committee. The author designed the study, acquired and analyzed the data and wrote the manuscript.