Addiction Biology Unit – Staff Zheng-Xiong Xi, M.D., Ph.D. Director, Addiction Biology Unit zxi@mail.nih.gov Guo-hua Bi, M.D. Research Associate, Addiction Biology Unit Guo-hua.bi@mail.nih.gov Chloe Jordan, Ph.D. Guest Scientist, Addiction Biology Unit chloe.jordan@nih.gov Benjamin Klein, B.A. Post-baccalaureate IRTA Fellow, Addiction Biology Unit ben.klein@nih.gov Ewa Galaj, Ph.D. Post-doctoral IRTA Fellow, Addiction Biology Unit ewa.galaj@nih.gov Briana Hempel, Ph.D. Post-doctoral IRTA Fellow, Addiction Biology Unit Briana.hempel@nih.gov Alumni Former Ying (Cecelia) Liang, M.D., Ph.D. Former Guest Researcher, Addiction Biology Unit Hai-Ying Zhang, M.D. Ph.D. Former Researcher, Addiction Biology Unit Yi He, M.D., Ph.D. Former Researcher, Addiction Biology Unit Bree Humburg Former Post-baccalaureate IRTA Fellow, Addiction Biology Unit