Funding for this research was provided by:
National Institute on Drug Abuse (Z99 DA999999)
Article History
Received: 13 August 2020
Accepted: 21 September 2020
First Online: 3 November 2020
Compliance with Ethical Standards
:
: W.M.C. reports ownership of stock in General Electric, 3 M, and Pfizer Inc. unrelated to the submitted work. Other authors have no interests to declare.
: The opinions expressed in this paper are those of the authors and do not necessarily reflect the views of the National Institute on Drug Abuse of the National Institutes of Health, or the U.S. Department of Health and Human Services.
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