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Authors
Bell, Ryan P.
Barnes, Laura L.
Towe, Sheri L.
Chen, Nan-kuei
Song, Allen W.
Meade, Christina S.
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Funding
Funding for this research was provided by:
National Institutes of Health (K23-DA028660, R21-DA036450)
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Article History
Received: 2 November 2017
Revised: 23 March 2018
Accepted: 26 March 2018
First Online: 23 April 2018
Compliance with ethical standards
: Participants were drawn from two protocols with shared procedures that were approved by the institutional review board of Duke University Health System.
: The authors declare that they have no conflicts of interest.
