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Lin Chang, M.D. is the Vice-Chief at the Vatche and Tamar Manounkian Division of Digestive Diseases, Program Director of the UCLA GI Fellowship Program, and Co-Director of the G. Oppenheimer Center for Neurobiology of Stress and Resilience (CNSR). She is also a Professor of Medicine at the David Geffen School of Medicine at UCLA. Her clinical expertise is in functional gastrointestinal disorders, and her research is focused on the pathophysiology of IBS related to stress, sex differences, genetic and epigenetic factors, neuroendocrine alterations, and gut microbiome, and the treatment of IBS. Dr. Chang received her M.D. from UCLA School of Medicine.