But what about all the other modalities that MAY have an effect, such as laser? If you are basing your decision to use U/S on how effective it MAY be, how do you justify choosing it instead of something else that MAY be just as, or more, effective?

And wouldn't it be a better use of that spare time to do something with proven research support, like exercise? I could still spend that 5 minutes with my patient, in the gym, building rapport, and be confident that something was occurring, rather than hope that something MAY be occurring.