Howard M. Gebel, Ph.D., is a Professor of Pathology and Co-Director of the Histocompatibility and Molecular Immunogenetics Laboratory at Emory University Dr. Gebel is a recognized expert in histocompatibility testing and has published extensively in this area. He sits on the editorial boards of the American Journal of Transplantation and Human Immunology and reviews articles for JAMA, the Journal of Clinical Investigation, Transplantation, the Journal of Immunology, and Cytometry. Dr. Gebel's major area of interest is in the detection and clinical relevance of HLA alloantibodies.