Funding for this research was provided by:
National Institutes of Health (ES013508, AI116794, TR001263, HL134015, LM010098, DK112217, EY022300, LM011360, LM009012)
Received: 9 March 2017
Accepted: 7 November 2017
First Online: 11 December 2017
Ethics approval and consent to participate
: Not applicable. All data used in this study was publicly available online and does not contain private information about any particular individual.
: Not applicable
: The authors declare that they have no competing interests.
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