A genetic cluster of patients with variant xeroderma pigmentosum with two diferent founder mutations - Munford, Veridiana; Castro, L. P.; Souto, R.; Lerner, Leticia Koch; Vilar, Juliana Brandstetter; Quayle, Carolina de Barros Reis; Asif, Huma; Schuch, André Passaglia; Souza, T. A. de; Ienne, Susan; Alves, F. I. A.; Moura, L. M. S.; et al. (British Journal of Dermatology, 2017)