Ulrich, Elin M.
Sobus, Jon R.
Grulke, Christopher M.
Richard, Ann M.
Newton, Seth R.
Strynar, Mark J.
Mansouri, Kamel
Williams, Antony J.
Article History
Received: 30 July 2018
Revised: 14 September 2018
Accepted: 17 October 2018
First Online: 6 December 2018
Compliance with ethical standards
: Human serum was used in this study. Consent was obtained at the time of original collection. However, its use in the current project is considered exempt human subjects research under 40 CRF 26.101(b)(4) because the source is “publicly available” (purchased from vendor) and the subjects cannot be identified (samples were both pooled and coded). In accordance with federal regulations, IRB approval for this secondary use was not required by either EPA or NIST.
: The authors declare that they have no conflict of interest.
: The views expressed in this manuscript are those of the authors and do not necessarily represent the views or policies of the US Environmental Protection Agency. Any mention of trade names, products, or services does not imply an endorsement by the US Government or the US Environmental Protection Agency. The EPA does not endorse any commercial products, services, or enterprises.