Hackl F, Bergmann J, Granter SR, Koyama T, Kiwanuka E, Zuhaili B, Pomahac B, Caterson EJ, Junker JPE, Eriksson E. Epidermal regeneration by micrograft transplantation with immediate 100-fold expansion. Plast Reconstr Surg. 2012 Mar; 129(3):443e-452e.