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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: Ultrasound Med Biol. 2017 Jul 22;43(10):2318–2328. doi: 10.1016/j.ultrasmedbio.2017.06.013

Figure 4.

Figure 4

Figure 4

Pressure measurements at the focal point: (a) peak positive and negative pressure; and (b) and the ratio of the peak positive to the negative pressure.