Received: 28 August 2018
Accepted: 24 March 2019
First Online: 2 April 2019
Ethics approval and consent to participate
: Permission to conduct this analysis was approved under the approval of the pathology databases (protocol # 1124 under National Health Sciences Research Committee). The need for informed consent was exempted from institutional review board due to the nature of the study, which involved a retrospective analysis of routinely collected data.
: Not applicable.
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