Funding for this research was provided by:
National Institutes of Health's National Center for Advancing Translational Sciences (KL2TR001424, UL1TR001422)
National Institutes of Health's National Institute of Neurological Disease and Stroke (K08NS097264)
Received: 19 March 2019
Accepted: 22 April 2019
First Online: 15 May 2019
Ethics approval and consent to participate
: Informed consent for specimen collection and analysis was obtained under protocols approved by Ann & Robert H. Lurie Children’s Hospital of Chicago (IRB #2012–14877), Northwestern University (STU00200351, STU00202063) and Children’s National Medical Center (IRB 1339, Study Pro00001339) Institutional Review Boards. This study was performed in accordance with the ethical standards of the Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University and Children’s National Medical Center their respective Research Committees and Institutional Review Boards.
: This manuscript does not contain personal data in any form. All patient identifiers were removed prior to biological specimen analysis, and only deidentified results are presented.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.