ERBB2 and breast cancer: Figure 9 shows averagenormalized Raman intensity at 1618 cm–1 at membranes(A,B) in breast cancer cells: triple-positive MCF-7 (B), HTB-30, andAU-565 (C) overexpressing HER2, the normal cells (MCF-10A) (HER2 atthe normal level) and triple-negative aggressive breast cancer (MDA-MB-231).