In VF's Vasculitis Visionaries' fifteenth episode, Ben and Kaley are joined by Cleveland Clinic's Dr. Leonard Calabrese. He is both the head of Cleveland Clinic's Section of Clinical Immunology and the co-director of their Center for Vasculitis Care and Research. An immunologist by training, Dr. Calabrese works on a large number of topics, including HIV, Hepatitis C, and vasculitis. Tune in to learn about CNS vasculitis, the role of wellness in medicine, and some interesting tidbits about the exposome. You can follow Dr. Calabrese on Twitter at @LCalabreseDO.