Funding for this research was provided by:
Eric M. Mindich Research Fund for the Foundations of Human Behavior
Received: 13 March 2018
Accepted: 7 August 2018
First Online: 22 August 2018
Ethics approval and consent to participate
: This study was reviewed and approved by the Harvard University Committee on the Use of Humans Subjects. All participants provided written informed consent.
: Not applicable.
: None of the authors report any competing interests.
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