Funding for this research was provided by:
Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD007475)
Text and Data Mining valid from 2019-08-01
Received: 15 November 2018
Accepted: 19 August 2019
First Online: 9 September 2019
Compliance with ethical standards
: Informed consent was obtained from participants’ parents and all children assented to participate.
: The authors declare that they have no conflict of interest.