Ultrasound therapy with the frequency of 3 MHz or 1 MHz Continuous mode of operation and pulsed mode with modular frequencies of
Therapeutic Ultrasound | Physio Milton Pickering | Pro Fusion Rehab
Comparison of the effects of 1 MHz and 3 MHz therapeutic ultrasound on endothelium-dependent vasodilation of humans: a randomised clinical trial - ScienceDirect