Nagano, Cibele Pidorodeski, et al. “Cytokeratin Immunoprofile of Primary and Metastatic Adenoid Cystic Carcinoma of Salivary Glands: A Report of Two Cases”. Autopsy and Case Reports, vol. 6, no. 4, Dec. 2016, pp. 57-63, https://doi.org/10.4322/acr.2016.056.