CABRAL, R.; BRINCA, A.; VIEIRA, R.; MARIANO, A.; TELLECHEA, ÓSCAR; FIGUEIREDO, A. MERKEL CELL CARCINOMA – REPORT OF 7 CASES. Journal of the Portuguese Society of Dermatology and Venereology, v. 71, n. 2, p. 171-176, 24 Jun. 2014.