Funding for this research was provided by:
Friends of Prentice
Illinois Governor's Office for Early Childhood
Text and Data Mining valid from 2018-04-11
Received: 22 February 2017
Accepted: 29 March 2018
First Online: 11 April 2018
Ethics approval and consent to participate
: The Northwestern University Institutional Review Board (IRB) reviewed and approved the study protocol and all data collection activities described in this manuscript. This study was determined to be minimal risk, pursuant to quality assurance activities, and granted a waiver of consent for data collection activities.
: Not applicable.
: The authors declare that they have no competing interests.
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