The group is recognized for development of a groundbreaking suite of whole-genome human reference materials, and the metrological methods to express the confidence in the results. Reference Material 8398 Human DNA for Whole-Genome Variant Assessment was the first-ever of its kind. Other materials in this suite are useful for comparing and contrasting genes from distinctly different ancestries, and for analysis of genetic links among family members. These materials provide medical and research laboratories the wide-ranging capability to accurately test DNA mapping for genetic testing, medical diagnoses, and new personalized drug therapies, and provide the FDA with the ability to conduct science-based regulatory oversight of the technology.