1. Ultrasound in obstetrics: a review of safety;Hershkovitz;Eur J Obstet Gynecol Reprod Biol,2002
2. Heat generated by ultrasound in an absorbing medium;Cavicchi;J Acoust Soc Am,1984
3. Temperature elevation in a beam of ultrasound;Nyborg;Ultrasound Med Biol,1983
4. Physics of acoustic cavitation in liquids;Flynn,1964
5. Lung damage from exposure to pulsed ultrasound;Child;Ultrasound Med Biol,1990