I believe this is the future of medicine, light energy and sound. There is so much research in this area and new studies are being released.
In fact they are using HIFU, high intensity frequency ultrasound to cure certain type of cancer like prostate and Breast Cancer I read a case where this guy was cured of prostate in two hours in Mexico, using HIFU, it was not a big deal they flew to Mexico for it since it was being offered there.
The studies are now here, if you see and hear about it then big pharma did not buy all rights to it and sweep in under the rug/ HIFU is the happening today and it pretty common place in many countries now.