Funding for this research was provided by:
National Institute of General Medical Sciences (P20GM125503)
Received: 23 May 2020
Accepted: 11 June 2020
First Online: 20 June 2020
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 # 228443) at the University of Arkansas for Medical Sciences. Tissue donation was performed after consent from the patient or a person with legal authority to grant permission. Samples used for research are blinded to personal identifying information.
: Not applicable. All patient data is not identifiable.
: The authors declare that they have no conflicts of interest with respect to the contents of this manuscript.