Prior to this position, Jeff was a senior clinical/research fellow of Hematology/Oncology at the Sidney Kimmel Comprehensive Cancer Center of Johns Hopkins University. Jeff also completed a NIH supported experimental hematology fellowship and a clinical transfusion medicine/blood banking fellowship at the Lindsley F. Kimball Research Institute of New York Blood Center after completed an internal medicine residency at Mount Sinai School of Medicine. Jeff received his Ph.D. from New York Medical College in New York and his MD from Shanghai Jiao Tong University School of Medicine in Shanghai.