Funding for this research was provided by:
Directorate for Engineering (CMMI-1435074, CMMI-1435449)
Article History
Received: 1 September 2017
Revised: 23 August 2018
Accepted: 5 October 2018
First Online: 16 October 2018
Compliance with ethical standards
:
: The research on human subjects described in this paper was conducted in compliance with ethical standards, with the approval of the Institutional Review Boards of the University of Maryland and the George Washington University.