1. Pilomatrixoma - forma pseudoampollosa y otras variedades clínicas;Carvajal;Med Cut ILA,1987
2. Expression of human hair keratin basic 1 in pilomatrixoma. A study of 128 cases;Cribier;Br J Dermatol,1999
3. Malherbe’s calcified epithelioma. Review of 80 cases;Harbon;Ann Chir Plast Esthet,1990
4. Clinicopathological study of pilomatricoma;Darwish;Saudi Med J,2001
5. Multiple pilomatrixomas and myotonic dystrophy: a case report;Salerni;Riv Neurol,1988