Received: 25 March 2020
Accepted: 24 July 2020
First Online: 6 October 2020
Ethics approval and consent to participate
: All human subjects in this study consented to samples being used for research purposes. No test results were returned to donors. IRB oversight of the study was conducted: Western Institutional Review Board (protocol no. 20152816).
: Not applicable.
: Authors have read the journals policy and the authors of this manuscript have the following competing interests: The authors are or were employed by HealthTell, Inc. and iCarbonX as indicated in the author’s affiliations. A patent application has been filed on the data presented. This does not alter the author’s adherence to the BMC Immunity and Ageing editorial policies.