Walton, Travis http://orcid.org/0000-0001-6812-1579
Wu, Hao
Brown, Alan http://orcid.org/0000-0002-0021-0476
Funding for this research was provided by:
Richard and Susan Smith Family Foundation
Pew Charitable Trusts
E. Matilda Ziegler Foundation for the Blind
LouLou Foundation
Helen Hay Whitney Foundation
Article History
Received: 22 July 2020
Accepted: 14 December 2020
First Online: 20 January 2021
Competing interests
: The authors declare no competing interests.