Paul J. Jannetto, Ph.D., DABCC, FACB, M.T.(ASCP), is a Senior Associate Consultant at the Mayo Clinic (Rochester, MN) where he serves as the Co-Director for both the Toxicology and Drug Monitoring Laboratory and Metals Laboratory. Previously, he was an Associate Professor of Pathology at the Medical College of Wisconsin (Milwaukee, WI) where he functioned as the Director of Clinical Chemistry/Toxicology at Dynacare Laboratories (Milwaukee, WI). He earned his BS in Clinical Laboratory Science from the University of Wisconsin-Milwaukee and worked five years as a Medical Technologist for Medical Science Laboratories before entering graduate school. He then earned a Ph.D. in Pharmacology and Toxicology at the Medical College of Wisconsin. He is board-certified by the American Board of Clinical Chemistry and American Society for Clinical Pathology.