Staff Associate II. The Laboratory of Benjamin Izar, MD is inviting applications for a dynamic and highly motivated Staff Associate II to join his research program in Hematology & Oncology at. Columbia University Vagelos College of Physicians and Surgeons. The ideal. candidate, during the appointment will be responsible of performing experiments. to elucidate mechanisms of brain-metastatic organotropism in the laboratory of. Dr. Benjamin Izar, Pr...