Nucleolar organizer region staining patterns in paraffin-embedded tissue cells from human skin cancers - Romão-Corrêa, Rosana F.; Maria, Durvanei A.; Soma, Mithitaka; Sotto, Mírian Nacagami; Sanches Junior, José Antônio; Festa Neto, Cyro; Ruiz, Itamar R. G. (Journal of Cutaneous Pathology, 2005)