Text and Data Mining valid from 2020-03-10
Received: 23 July 2019
Accepted: 26 February 2020
First Online: 10 March 2020
Ethics approval and consent to participate
: This protocol was deemed exempt because it did not involve human participants but utilized only de-identified human medical record data. All study procedures were approved by the Walter Reed Army Institute of Research Institutional Review Board (DoD Assurance: A20126; HHS Federal Wide Assurance: #00000015; IRB Registration: #00000794).
: Not applicable.
: The authors declare that they have no competing interests.