ERBB2 and neoplasm: The distribution of tumor characteristics between ICs and non-ICs overall was not in full agreement with other literature, with ICs being larger at diagnosis (Komenaka et al., 2004; Brekelmans et al., 2001), of higher grade (Domingo et al., 2010; Kirsh et al., 2011; Meshkat et al., 2015), and displaying more lymph node involvement (Musolino et al., 2012; Blanch et al., 2014) and more often being ER/PR-negative (Damiani et al., 2015; Musolino et al., 2018), HER2-positive (Martín-López et al., 2012; Musolino et al., 2018), or triple negative (Gilliland et al., 2000).