Text and Data Mining valid from 2019-09-11
Received: 6 June 2019
Accepted: 2 September 2019
First Online: 11 September 2019
Ethics approval and consent to participate
: The Yale IRB approved this study and individual consent was waived (IRB protocol ID: 2000020356).
: Consent for publication was acquired from the Yale IRB. No specific identifiable information was included in this project.
: The authors declare that they have no competing interests.