1. ‘Mechanisms involved in therapeutic ultrasound’;Dyson;Physiotherapy,1987
2. ‘Using surveys of ultrasound therapy devices to draft performance standards’;Repacholi;Health Physics,1979
3. ‘Evaluation of therapeutic ultrasound devices: Performance stability over 44 weeks of clinical use’;Rivest;Physiotherapy Canada,1986
4. Guide lines for the Safe Use of Ultrasound. Part 1. Medical and Paramedical Applications. Safety Code 23,1989
5. ‘Effects of therapeutic ultrasound on bone marrow in dogs’;Payton;Physical Therapy,1975