ERBB2 and breast carcinoma: For predicting HER2 status, our LR-HER2 generated AUCs of 0.803–0.900, which were much higher than previous studies based on primary breast cancer and generated AUCs ranging from 0.700 to 0.860 (Li et al., 2021; Niu et al., 2021; Zhou et al., 2021).