Teasing the Immune System to Repair the Heart Epstein JA, Rosenthal N, Feldman AM. N Engl J Med. 2020;382(17):1660-1662. doi: 10.1056/NEJMcibr2002014. PMID: 32320575 Related people Jonathan A. Epstein, M.D. Interim Executive Vice President of the University of Pennsylvania for the Health System & Dean of the Perelman School of Medicine; William Wikoff Smith Professor of Cardiovascular Research