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Piscaglia F, Bolondi L; Italian Society for Ultrasound in Medicine and Biology (SIUMB) Study Group on Ultrasound Contrast Agents.Piscaglia F, et al. Among authors: bolondi l.Ultrasound Med Biol. 2006 Sep;32(9):1369-75. doi: 10.1016/j.ultrasmedbio.2006.05.031.Ultrasound Med Biol. 2006.PMID: 16965977