Received: 21 October 2019
Accepted: 3 April 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: The study was conducted in accordance with the Declaration of Helsinki, and the protocol was approved by the UMMC institutional review board on August 16, 2017 (IRB file# 2017-0120). The IRB committee oversees the ethical conduct of human and animal research at UMMC and has provided expedited approval. The study is retrospective and has minimal risk; consent was waived.
: All the authors consent for the manuscript to be published.
: The authors declare no conflict of interest.