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. 2017 Jan 11;16:14. doi: 10.1186/s12938-016-0310-y

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Absorption coefficient spectra of primary absorbers in the skin tissue. Absorption coefficient spectra of water, μ ^water_a(λ), melanin, μ ^melanin_a(λ), fat, μ ^fat_a(λ), deoxy- hemoglobin, μ ^Hb_a(λ), oxy-hemoglobin, μ ^Hb02_a(λ), and intrinsic, μ ^intrinsic_a(λ)