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. Author manuscript; available in PMC: 2021 Apr 27.
Published in final edited form as: IEEE Rev Biomed Eng. 2021 Jan 22;14:181–203. doi: 10.1109/RBME.2020.2988295

Fig. 2.

Fig. 2.

M-mode echocardiography recorded from the first author. IVS: Inter-ventricular Septum; PW: Posterior Wall; IDs: Internal Diameter (systole); IDd: Internal Diameter (diastole); green curve is ECG signal.