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A, Mean raw spectra acquired from the 3 different breast tissue sites, normal (broken black line), fibroadenoma (solid black line), and invasive breast carcinoma (solid gray line) using 785 nm excitation wavelength. B, Reconstructed mean Raman spectrum of fibroadenoma (dashed black line), invasive carcinoma (dotted black line), and normal tissue (solid black line) together with standard deviation (shaded gray area).
