Mutational status of NRAS and BRAF genes and protein expression analysis in a series of primary oral mucosal melanoma - Hsieh, Ricardo; Nico, Marcello M. S; Coutinho-Camillo, Cláudia Malheiros; Oliveira, Kátia K; Sangueza, Martin; Lourenço, Silvia Vanessa (American Journal of Dermatopathology, 2017)