Patricia M. Williams, PhD, DABT Environmental Toxicology Experts, LLC63 Walnut PlaceCovington, Louisiana 70433 cell:  504-915-1817email:  pwilliamstox@gmail.com Patricia M. Williams, Ph.D., DABT, BS, MS, ASCP(MT)President, Environmental Toxicology Experts, L.L.C. Board certification: Diplomate of the American Board of Toxicology 2006-2011; 2012-2016, 2017-2021; 2022-2026. Tulane University, School of Medicine, Department of Anatomy, Ph.D., 1983. Major: Anatomy; Minor: Biochemistry Louisiana [