Recently, evidence has accumulated to support the notion that breast cancer subtypes are distributed in an alternative pattern corresponding to race or ethnicity.4,15,18 Among Asians, the proportion of Koreans with Her2/neu positive cancer was higher (36%) than that for Japanese (19%) and Chinese (26%),19 which was similar to that reported in this clinical study (22%). The gene discussed is ERBB2; the disease is breast carcinoma.