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Amyloid beta biomarker for dementia detection by hyperspectral ophthalmoscope images

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Figure 6. Comparison of retinal spectra by three age intervals (npatients = 137, p-value = 0.032, Chi-square test and nsamples = 3,000, p-value < 0.006, Chi-square test) at sampling locations (A) F, (B) I1, (C) I2, (D) S1, and (E) S2. Positions F, I1, and S1 show the difference at long wavelengths (>550 nm).