,
Yang, Jingzhen https://orcid.org/0000-0003-4019-0999
Peek-Asa, Corinne
Noble, James M.
Torner, James
Schmidt, Paul
Cooper, Martha L.
Article History
Received: 7 December 2017
Accepted: 31 January 2018
First Online: 12 February 2018
Ethics approval and consent to participate
: The study and data collection protocol was approved by the Institutional Review Boards (IRB) of The University of Iowa (IRB-201505814) and Nationwide Children’s Hospital (IRB15–00316).
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.