From the ∗Epidemiology Branch A3-05, National Institute of Environmental Health Sciences, Research Triangle Park, NC

†Femeris Women's Health Research Center, Medical Diagnostic Laboratories, A Division of Genesis Biotechnology Group, Hamilton, NJ

‡Biostatics and Computational Biology Branch A3-05, National Institute of Environmental Health Sciences, Research Triangle Park, NC

Current address: Scott E. Gygax, Department of Medical Laboratory Sciences and Biotechnology, Jefferson College of Health Professions, Thomas Jefferson University, Philadelphia, PA.

Current address: David W. Hilbert, Merck, West Point, PA.

Acknowledgments: The authors thank Drs Jacob Kresovich and Musa Kana for reviewing a draft of the manuscript. They also thank their collaborators and study staff at the Henry Ford Health System (Detroit, MI) and Social and Scientific Systems (Research Triangle Park, NC).

Conflict of Interest and Sources of Funding: The research was supported by the Intramural Research Program of the National Institutes of Health, National Institute of Environmental Health Sciences (10-E-N044). Funding also came from the American Recovery and Reinvestment Act funds designated for National Institutes of Health research. The authors also shared funding of quantitative polymerase chain reaction measurement with Medical Diagnostics Laboratory. The authors have no conflict of interest to declare.

Correspondence: Kristen R. Moore, PhD, Epidemiology Branch A3-05, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709. E-mail: [email protected].

Received for publication September 24, 2020, and accepted May 2, 2021.

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