Conflict of Interest
The authors disclose no conflict of interest.
This research did not receive any specific grant from funding agencies
in the public, commercial, or not-for-profit sectors.
Authors’ contributions: AF, JLD, SR and AML were involved in
designing the study. All authors were involved with patient accrual and
data collection. SPJ was the statistician of the study. AF, JLD, SPJ, SR
and AML were involved with data interpretation. All authors contributed
to the manuscript editing and approved the final manuscript.
AML and JLD contributed equally to this work.