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. Author manuscript; available in PMC: 2016 Oct 31.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2015 Mar;62(3):475–493. doi: 10.1109/TUFFC.2014.006788

Fig. 2.

Fig. 2

(a) Sound speed map [mm·μs−1] and (b) acoustic attenuation slope map [dB·(MHz)−y·cm−1] of the numerical breast phantom.