For example, for HER2+ early breast cancer, SEER17 data make up approximately 26% of the overall tumor volume data in the USCS database and include approximately 22% non-Hispanic White patients, 24% non-Hispanic Black patients, 39% Hispanic patients, 54% non-Hispanic Asian or Pacific Islander patients, and 28% non-Hispanic American Indian/Alaska Native patients. Here, ERBB2 is linked to breast cancer.