The absolute ERBB2 copy number in plasma was equivalent among Asian and non-Asian gastric (median CN = 4.8 vs. 4.1), lung (median CN 2.8 vs. 2.5), and breast (median CN 3.3 vs. 2.9) cancer patients but higher in Asian CRC patients (median CN 6.6 vs. 2.7; P = 0.146; Figure 3B). The gene discussed is ERBB2; the disease is cancer.