1. Transmissiveness of ultrasound through tap water, glycerin, and mineral oil;Griffin;Phys Ther,1980
2. Krusen's Handbook of Physical Medicine and Rehabilitation;Kottke,1982
3. Some factors influencing temperature distribution in thighs exposed to ultrasound;Lehmann;Arch Phys Med Rehabil,1958
4. Factors in selecting dosage of ultrasound: with particular reference to use of various coupling agents;Reid;Physiotherapy Can,1973
5. Ultrasound coupling media: their relative transmissivity;Warren;Arch Phys Med Rehabil,1976