Funding for this research was provided by:
John Templeton Foundation (48424)
Received: 11 December 2019
Accepted: 5 May 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: Institutional Review Board approval for this study was obtained from the Partners Human Research Committee (Protocol # 2015P000014/MGH). IRB approval was granted for verbal consent to be given by participants instead of written consent. This study was deemed to be exempt from continuing IRB review by the Partners Human Research Committee.
: Not applicable.
: The authors declare that they have no competing interests.