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. 2019 Nov 6;9:16138. doi: 10.1038/s41598-019-52498-7

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© The Author(s) 2019

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(a) Typical absorbance spectrum of a LDL-c sample of a patient from the periodontitis group (Black: Extinction spectrum, Red: Nonlinear Fit (scattering), Blue: Absorbance); (b) Mean values of absorbance at λ = 480 nm, in the different times, from the two groups.