Funding for this research was provided by:
National Institute on Drug Abuse (UG3DA044823)
Received: 4 December 2020
Accepted: 16 June 2021
First Online: 8 July 2021
: This study was deemed exempt by the Office of Human Research Ethics (Reference ID 243903) at the University of North Carolina at Chapel Hill.
: Not applicable.
: DME receives research funding from Gilead and Merck (paid to the University of North Carolina). RAP, WAZ, CBH, SKR, and DMC declare that they have no competing interests.