Ultrasound Treatments
I took a course about 10 years ago on US and tens, finaly bought a used unit 4 years ago and love it, it cost me $700 canadian and was almost new (mettler sonicator).
I use it for tears, strains, sprains. depends on patient flow and size of clinic, also type of patient and injury you see. Not much help with typical postural problems seen with office workers etc.