This structure also included CD19 and CD20 for B cell leukemia and lymphoma [82,83,84,85], CD138 for myeloma [86], human epidermal growth factor receptor 2 (HER2) and epidermal growth factor receptor for brain metastasis [87,88,89], HER2 and EGFR for breast cancer [81,90,91,92,93,94], and GD2 for neuroblastoma [95,96]. The gene discussed is EGFR; the disease is plasma cell myeloma.