The study conducted by Navin et al in 2011 involved low-coverage mononuclear sequencing (∼6%) on 100 single cells of multigenomic triple-negative breast cancer (ER-/PR-/Her2-) and 100 single cells of single-genomic triple-negative breast cancer (ER-/PR-/Her2-) along with their corresponding liver metastases. Here, ERBB2 is linked to triple-negative breast carcinoma.