Since I'd have to listen to the whole thing against to give you the timeframe, no, you're on your own. You can either trust me or not or spend a whopping 30 minutes listening to it yourself.
It WAS a concern of mine too, hence I dug, and was surprised to learn that it apparently doesn't matter who uses the RFA equipment. In fact, the professor went on to mention that it's so easy to use a lot of tiny hospitals in the middle of nowhere use them.