Funding for this research was provided by:
Office of Extramural Research, National Institutes of Health (R01 GM112998, T32 NS082174, R37 GM048071, DP2 AT010376, R21 NS085628, F31 GM119330, R01 NS109810)
Howard Hughes Medical Institute (Faculty Scholars Award)
Received: 14 December 2018
Accepted: 18 June 2019
First Online: 7 August 2019
: The authors declare no competing interests.