Received: 23 March 2020
Accepted: 4 June 2020
First Online: 20 July 2020
Ethics approval and consent to participate
: This study was determined as exempt by the U.S. Food and Drug Administration (FDA) Institutional Review Board for Human Subject Protection because data were previously collected and did not contain personally identifiable information.
: Not applicable.
: The authors declare that they have no competing interests.