Funding for this research was provided by:
Received: 1 May 2017
Accepted: 30 January 2018
First Online: 2 March 2018
Ethics approval and consent to participate
: The study was registered with ExternalRef removed (#NCT02170441) and was reviewed and approved by an academic Human Research Protection Program and each of the study sites. The primary IRB was approved at University of California San Diego Human Research Protection Program. Participation did not include any changes to the standard of care. All study participants or their legal guardian/representative provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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