Funding for this research was provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD076994)
Article History
Received: 20 September 2019
Accepted: 7 February 2020
First Online: 20 April 2020
Conflict of Interest
: The authors have no conflicts of interest.
: This project was approved by The Pennsylvania State University’s Institutional Review Board for Human Subjects Research.
: Informed consent for parents, and by parents for their children, was obtained from all participants in accordance with protocols approved by the University’s Institutional Review Board for Human Subjects Research.