Robert G. Hamilton, Ph.D., D.ABMLI is currently Professor of Medicine and Pathology at The Johns Hopkins University School of Medicine in Baltimore, Maryland. He joined the Division of Allergy and Clinical Immunology of the Department of Medicine in 1981 and is the Director of the Dermatology-Allergy Clinical Immunology (DACI) Reference Laboratory. He is a fellow of the American Academy and College of Allergy, Asthma and Immunology. He has served as co-editor the past 2 editions of the Manual of Molecular and Clinical Laboratory Immunology. He has authored more than 300 peer-reviewed publications, reviews and book chapters. He lectures on a variety of topics, including laboratory diagnosis and management of human allergic disease and assessment of immunogenicity and allergenicity of new drugs.