Comment on

• Acoustic output upper limits proposition: should upper limits be retained?

  O'Brien WD Jr, Abbott JG, Stratmeyer ME, Harris GR, Schafer ME, Siddiqi TA, Merritt CR, Duck FA, Bendick PJ. O'Brien WD Jr, et al. J Ultrasound Med. 2002 Dec;21(12):1335-41. doi: 10.7863/jum.2002.21.12.1335. J Ultrasound Med. 2002. PMID: 12494975 No abstract available.
• Arrhythmias in rat hearts exposed to pulsed ultrasound after intravenous injection of a contrast agent.

  Zachary JF, Hartleben SA, Frizzell LA, O'Brien WD Jr. Zachary JF, et al. J Ultrasound Med. 2002 Dec;21(12):1347-56; discussion 1343-45. doi: 10.7863/jum.2002.21.12.1347. J Ultrasound Med. 2002. PMID: 12494976
• Diagnostic ultrasound treatment increases the bone fracture-healing rate in an internally fixed rat femoral osteotomy model.

  Heybeli N, Yeşildağ A, Oyar O, Gülsoy UK, Tekinsoy MA, Mumcu EF. Heybeli N, et al. J Ultrasound Med. 2002 Dec;21(12):1357-63. doi: 10.7863/jum.2002.21.12.1357. J Ultrasound Med. 2002. PMID: 12494977