Funding for this research was provided by:
National Eye Institute (K12 EY016335, K23-EY026988)
Article History
Received: 4 October 2017
Revised: 12 June 2018
Accepted: 26 July 2018
First Online: 2 August 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee at Duke and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.