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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Sep;64(9):1298–1304. doi: 10.1109/TUFFC.2017.2707981

Fig. 4.

Fig. 4

Comparison of wave speeds between 10 healthy subjects and 10 patients through six intercostal spaces. Surface wave speed at (a) 100 Hz, (b) 150 Hz, (c) 200 Hz.