Funding for this research was provided by:
National Institutes of Health (P20GM125503)
Received: 18 April 2019
Accepted: 15 August 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: This study conforms to the ethical guidelines for human research and the Health Insurance Portability and Accountability Act. This was a single institution, retrospective study which was approved by our Institutional Review Board (IRB # 239292) at the University of Arkansas for Medical Sciences.
: The patient’s living next of kin provided signed informed consent for the research use and publication of their medical data and reviewed the manuscript.
: The authors declare that they have no competing interests.