Dyson M, Franks C, Suckling J
Ultrasonics. 1976 Sep;14(5):232-6. doi: 10.1016/0041-624x(76)90024-x.
The local application of theraputic ultrasound has been shown, in a controlled trial, to stimulate the healing of chronic varicose ulcers. The change in ulcer size by the end of the period of treatment was noted. It was found that healing of insonated ulcers was significantly more marked than that exhibited by the controls.