Received: 15 July 2020
Accepted: 17 November 2020
First Online: 30 November 2020
Ethics approval and consent to participate
: The Institutional Review Boards (IRBs) of the researchers’ institutions recognize that the analysis of de-identified, publicly available data does not constitute human subjects research as defined in federal regulations, and such does not require IRB review.
: Not applicable.
: The authors declare that they have no competing interests.