William Clarke received his PhD in Analytical Chemistry from the University of Nebraska in Lincoln in 2000, followed by a post-doctoral fellowship in Clinical Chemistry at the Johns Hopkins School of Medicine, ending in 2002. In addition, he received an MBA focused on Medical Services Management from the Carey School of Business at Johns Hopkins in 2007. He is an Associate Professor in the Department of Pathology, as well as the director of both Point-of-Care Testing and Clinical Toxicology for The Johns Hopkins Hospital. Dr. Clarke is board certified in Clinical Chemistry by the American Board of Clinical Chemistry, and is a Fellow of the National Academy of Clinical Biochemistry. Dr. Clarke has published, as author or co-author, over 100 peer-reviewed manuscripts and book chapters. He is the Editor of the book Contemporary Practice in Clinical Chemistry, and the Co-Editor-in-Chief for the journal Practical Laboratory Medicine.