[1]
D. Kalabalikis, A. Patsatsi, M.-G. Trakatelli, P. Pitsari, I. Efstratiou, and D. Sotiriadis, “Hyperpigmented Forearms and Nail: A Quiz”, Acta Derm Venereol, vol. 90, no. 6, pp. 657–659, May 2010.