Kazandjian, S., et al. “Endothelial Cell Renewal in Skin of Patients With Progressive Systemic Sclerosis (PSS): An in Vitro Autoradiographic Study”. Acta Dermato-Venereologica, vol. 62, no. 5, Sept. 1982, pp. 425-9, doi:10.2340/0001555562425429.