Engrafted Human Induced Pluripotent Stem Cell–Derived Cardiomyocytes Undergo Clonal Expansion In Vivo. Issue 16 (20th April 2021) - El-Nachef, Danny; Bugg, Darrian; Beussman, Kevin M.; Steczina, Sonette; Martinson, Amy M.; Murry, Charles E.; Sniadecki, Nathan J.; Davis, Jennifer