Yes. Well, I could tell you right now it’s expensive because we’re spending, as the advertising ramped-up, we’re spending in the neighborhood of about $300,000 a month in advertising both radio, online and social media. And we're doing it, and I think it’s about 13 markets. So the realities are yeah we’re generating a lot of leads. But this isn’t like, let’s say, a balloon where you can get it done for $5,000 or $7,000, right, this is an expensive implant neurometabolic implant, so neuroregulator. Well, you’re looking at a cash price to a patient of significantly more than that, 3 to 4 times that. So your hit rate on finding that kind of wealthy obese patients that can do this is going to be lower, right. So the objective, what we look at is, we don’t necessary to look at trying to build a big line of revenue. What we’re looking for is we’re looking for getting commercial patients implanted, whether we got to begin heavily discounting that or in some cases giving it away, because the payers are telling us, we have to have more commercial real world data in order to strengthen our position with them, the payers, in an effort to get insurance coverage. So yes we had 239 patients in our FDA trial, but that was under a very controlled environment. And in a commercial setting, it's easy to lose those patients and they’re off doing their own thing. And the payers want to know, is the implant itself carrying the day. And the good news here is that -- and by the way we are looking closely at how much we’re spending and that’s kind of all over the board. And we get spikes and values in that but I can give you, I think, a little clear data on that next quarter once we get a lot more patients going here. But I will say that most recently, we’ve submitted our commercial patients and we expect, as I mentioned here in the call, we expect to have [technical difficulty] soon. So I can tell you that the results from those patients were very positive. The results showed that those patients lost at least as much weight as we saw in a very rigorous clinical trial. And that’s what the patients want to see.