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. Author manuscript; available in PMC: 2020 Jan 7.
Published in final edited form as: IEEE Trans Biomed Circuits Syst. 2019 Oct 18;13(6):1494–1505. doi: 10.1109/TBCAS.2019.2948303

Fig. 7.

Fig. 7.

PAG and Spectrogram recorded from a vascular access phantom with low 10% DOS (A and B) and high 80% DOS (C and D) showing increase in power in higher frequency bands with DOS.