JDR -- Bartlett et al. 83 (12): 909 Figure 1

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Figure 1. Normalized FTIR absorption spectra of enamel from wild-type (solid line) and MMP-20 null mice (dashed line), collected in ATR (A) and reflectance modes (B). Amide I protein band and ${nu}$ ₃ PO₄ band are shown. Enamel from 4 null and 4 control teeth were analyzed.