Contemporary Practice in Clinical Chemistry

Dr. William Clarke is a Professor of Pathology at the Johns Hopkins University School of Medicine. His research focuses on the development of analytical methods for drug analysis, clinical mass spectrometry, and devices for point-of-care testing. He serves as the director of Clinical Toxicology for Johns Hopkins Hospital, as well as the Point-of-Care Testing Program for Johns Hopkins Medicine.
Dr. Mark Marzinke is Associate Professor of Pathology and Medicine at the Johns Hopkins University School of Medicine.Dr. Marzinke serves as the Director of General Chemistry in the Johns Hopkins Hospital Core Laboratories, and is the Director of the Clinical Pharmacology Analytical Laboratory within the Division of Clinical Pharmacology. He is also Co-Director of the HIV Prevention Trials Network Laboratory Center.