When computing nomograms, the scores for different risk predictors, such as being 45 years old (100), having HR−/HER2+ breast cancer (50), being T2N1M0 (170), undergoing breast-conserving surgery (40), and receiving radiotherapy (50), would be taken into account for a 45-year-old woman with HR+/HER2+ breast cancer who has had breast-conserving surgery and radiotherapy. This evidence concerns the gene ERBB2 and breast cancer.