Funding for this research was provided by:
national institute of environmental health sciences (Z01 ES049033, Z01 ES049032, Z01 ES044005, P30ES00606)
National Institutes of Health
Received: 3 August 2021
Accepted: 30 November 2021
First Online: 9 December 2021
: Written informed consent and blood samples were collected at recruitment and the study was approved by the institutional review boards of the National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), and the Copernicus Group. Genomic DNA was extracted from aliquots of whole blood using an automated system (Autopure LS, Gentra Systems) in the NIEHS Molecular Genetics Core Facility or using DNAQuik at BioServe Biotechnologies LTD (Beltsville, MD).
: Not applicable.
: The authors declare that they have no competing interests.