Document is current

Article History

Received: 7 July 2020

Accepted: 6 January 2021

First Online: 30 January 2021

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest related to this work.

: This project was submitted to the University of Colorado Boulder Institutional Review Board and received an exempt classification. All procedures, including the informed consent process, were conducted in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and its later amendments.

Free to read: This content has been made available to all.