Yeah. And Chris, I'll just make a couple more comments on the commercial and why we are bullish for the rest of the year and into 2022. There were a couple things right at play. One, we talked about the fact that, Q2 had some bolus from Q1 patients not coming in. The other thing we saw in the summer months is as the Delta variant took increases, as Jeff said, there was another lockdown as far as our access, but also fewer patients coming into the office. And we've done an analysis that shows our patient enrollment forms and new patient starts are directly correlated to the increases and decreases in COVID cases. And then, what we also saw was an increase of vacations happening in the summertime, I think up sort of a pent up demand, where some people took time off that hadn't done so. And I think when you put all of those things together and look at kind of what we've seen, as Jeff mentioned, coming into September and October, gives us a lot of confidence that maybe we're getting over that hump, and hope hoping that it doesn't happen again. But we definitely see the reduction in patient and then the increase in patient. So it's really clear that patients aren't visiting the doctor's office, and then you see kind of a bolus, like I said. And as Jeff mentioned, the conference we were just at this past weekend, that's what you're hearing back from physicians now, as they are seeing or more normal, but kind of back to normal patient flow. So, we have patient enrollment forms that kind of give us an early indicator. And we have seen actually, every quarter, despite the fact that Q3 revenue was less than Q2 revenue, we actually had an increase in patient enrollment forms. And it's the transition of those patient enrollment forms from identifying a patient to actually getting a patient started. So those are a couple things that we looked at that give us confidence as we've seen kind of the rebound of new patient starts, but then they continued quarter-over-quarter increase in our patient enrollment form. So Molly, for the first time, we're providing guidance, which just shows you with a $47 million to $51 million reigns that we already know that the Q4 is going to be a significant increase over Q3. So hopefully that helps.