Suggested by the final ranking list, the best three cell line models for each breast tumor group were listed as follows: CAMA1, BT483, and HCC202 (ER group); HCC70, HCC1143, and HCC1937 (PR group); MDAMB453, HCC2218, and UACC893 (HER group); MDAMB453, CAL148, and ZR751 (ERHER group); HCC202, BT483, and ZR751 (ERPR group); MDAMB453, MDAMB361, and UACC893 (TP group); HCC1599, HCC70, and HCC1569 (TN group). The gene discussed is PGR; the disease is breast neoplasm.