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. 2021 Aug 26;24:100296. doi: 10.1016/j.pacs.2021.100296

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© 2021 The Author(s)

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 6 — Multi-wavelength photoacoustic analysis (MWPA) results for the osteoporosis and control rabbit model groups. (a) Photoacoustic physio-chemical spectra (PAPCS) of a rabbit bone specimen from the osteoporosis group. (b) PAPCS of a rabbit bone specimen from the control group. (c) MWPA curves of rabbit bone specimens from the osteoporosis and control groups. (d) Example MWPA curve fits for the osteoporosis and control groups. (e) Statistical analysis results for the relative collagen, lipid, and water contents of the osteoporosis and control groups. (f) Analysis of correlation between the relative collagen content as obtained via MWPA and the positive-stained area for the collagen content extracted from the histological images.