Article History
Received: 15 January 2019
Accepted: 28 May 2019
First Online: 11 June 2019
Ethics approval and consent to participate
: All participants were consented according to a protocol approved by the Johns Hopkins School of Medicine Institutional Review Board (Study# IRB00147458), and were compensated at a rate of $10 per hour.
: The individual featured in the images in this manuscript is the first author, who consents to this publication.
: The authors declare that they have no competing interests.