Received: 29 March 2019
Accepted: 12 June 2019
First Online: 19 June 2019
Ethics approval and consent to participate
: An application describing study protocols and objectives in full was submitted and ethics approval was granted by the Stanford University School of Medicine Institutional Review Board (IRB) prior to initiation of any enrollment. Prior to data collection, consent (and assent, as necessary) was granted by patients (and legal guardians, as necessary).
: Consent for publication was granted by all participating patients and families as part of the research participation consent form.
: The authors declare no competing interests.