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.