Funding for this research was provided by:
National Institutes of Health (TL1R001423)
Weinberg College of Arts and Sciences, Northwestern University (599WCASSUM1813665)
Austrian Marshall Plan Scholarship Foundation
NUSeq Core Facility Illumina Pilot Program
Received: 11 June 2020
Accepted: 16 December 2020
First Online: 31 January 2021
Ethics approval and consent to participate
: The “Toothbrush Microbiome Project” was approved by Northwestern University Institutional Review Board under designated study number STU00207363.
: Participants provided consent for collection and use of personal data online in the REDCap survey.
: The authors declare that they have no competing interests.