Funding for this research was provided by:
National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR071731)
Center for Microbiome Innovation (n/a)
Received: 15 December 2017
Accepted: 19 February 2018
First Online: 27 February 2018
Ethics approval and consent to participate
: All human subjects who participated in this project were consented under the UCSD HRPP approved protocol #150275 Explaining Variability in Human-associated microbial Communities PI Rob Knight (Federalwide Assurance number, FWA00004495).
: The authors declare that they have no competing interests.
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