Mike Shapiro
Analyst · William Blair. Your line is open.
Sure, Matt. It's, Mike. I'll start and John can certainly jump in. I think the way that we – look, as we try to handicap our top line expectations for the year, to state the obvious, there's quite a few things moving. I think we're encouraged with the reemergence of acute, which we've been candid around our expectations and how we characterize the growth in the low single-digit. I think that's our reasonable characterization for how we're thinking about this year. And with the chronic, again, remember we did have some benefits in the mid-year with site of care shifts with HOPDs and outpatient clinics shifting site of care into the home. And so, while we're thrilled with the fourth quarter results, we've characterized the chronic as high single, low double-digit growth profile. And again, in response to the first question, obviously, we're being a little cautious around the IG growth profile, which is our largest therapy franchise. The other thing I would say is the way we also characterize revenue and how we've oriented folks to think about the overall growth trends in the mid to high single digits, that's on a constant pricing basis. There are a handful of therapies not to get into specifics, but we do think that some ASP declines could have a point or so headwind from a top line reported growth perspective. That hasn't translated as much into the bottom line, because again, that also offsets with a lower cost of procure, but overall, we feel comfortable with lower acute and obviously a higher chronic portfolio growth profile for the year. As it relates to the EBITDA margin, I mean, look, as I mentioned, in my prepared comments, we're thrilled with the expansion and based on our model, we expect that we'll continue to expand EBITDA margin going forward at our midpoint for the year, and again, it gets a little bumpy with intra-quarter, but our EBITDA margin at the midpoint is in the neighborhood of 50 bps of expansion year-over-year. So we're continuing to drive EBITDA margin expansion. And again, at the midpoint around half a point of expansion for the full year with a revenue base, that's increasingly skewed more towards the lower margin. Chronic is something we feel really comfortable with.