1. Evaluation of four ultrasonic therapy units;Allen,1977
2. Performance of ultrasonic therapy units;Allen;Physiotherapy,1978
3. Australian Standard Specification AS T40-1969 for ultrasonic therapeutic equipment. Standards Association of Australia, Parkville, Victoria, Australia, 3052
4. Broadband measurements on ultrasonic tank lining materials;Chivers;Ultrasonics,1981
5. Strengthening of sutured skin wound with ultrasound in experiments on animals;Drastichova;Acta Chir. Plast.,1973