Text and Data Mining valid from 2018-11-20
Received: 25 August 2018
Revised: 9 October 2018
Accepted: 23 October 2018
First Online: 20 November 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: Consent was obtained from the participants, who voluntarily donated whole blood for preparation of the control and calibrators materials. All other DBS samples were de-identified for patient information prior to receipt for analysis of the study. This study was approved by the Institutional Review Board of the New York State Department of Health.