An expert in bioinformatics and biostatistics, he is an investigator in both the Division of Clinical Chemistry and the Sidney Kimmel Comprehensive Cancer Center.Dr. Zhang’s research focuses on developing bioinformatics tools that can be applied to clinical diagnoses. He and Johns Hopkins colleague Dr. Daniel Chan developed the first FDA-cleared in vitro diagnostic multivariate index assay, the OVA1 test for ovarian cancer.He serves as the director of bioinformatics and biostatistics in the Department of Pathology’s Center for Biomarker Discovery and Translation. The center studies applications of proteomic technologies in pathology.Dr. Zhang has published more than 80 scholarly articles, particularly in the field of bioinformatics.