Study of minor salivary gland mucoepidermoid carcinoma differentiation based on immunohistochemical expression of cytokeratins, vimentin and muscle-specific actin - Loyola, A M; Sousa, Suzana Cantanhede Orsini Machado de; Araújo, Ney Soares de; Araújo, Vera Cavalcanti de (European Journal of Cancer, Part B, Oral Oncology, 1998)