GUADAGNO, E., G. DE ROSA, and O. NAPPI. “A National Quality Assurance Program for Breast Immunohistochemistry: An Italian Perspective”. Pathologica - Journal of the Italian Society of Anatomic Pathology and Diagnostic Cytopathology, Vol. 110, no. 2, June 2018, pp. 83-91, https://www.pathologica.it/article/view/17.