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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: IEEE Trans Biomed Circuits Syst. 2019 Oct 10;13(6):1723–1735. doi: 10.1109/TBCAS.2019.2946661

Fig. 11.

Fig. 11.

Example of Bio-Z signal before and after low pass filtering, ΔBio-Z, first derivative and second derivative highlighted with the detected four characteristic points (DIA, MS, SYS and IP)