Tree Test validation of fructose 1,6 bisphosphate aldolase A and keratin 8 presence in hormone HER2 positive and hormone receptor negative, hormone receptor positive and HER2 negative, triple negative breast cancer tissue. Western blot analysis using fructose 1,6 bisphosphate aldolase A and keratin 8 antibody was conducted on a total of 15 breast cancer tissue samples, five of each type of breast cancer.