Yes. Lisa, let me take the first cut of your question. Your first one relates to the impact from the expiration of the ACA tax credits. We have estimated that impact to be about a 30 basis point reduction to our diagnostic volume in 2026. This estimate is incorporated into our revenue guidance for this year. It is also worth noting that the reported enrollment this year has been slightly better than anticipated. Of course, we continue to monitor the utilization of this insured group as the year progresses. I think your second question, Lisa, is as it relates to the weather impact. Yes, we indeed experienced weather in January of this year, which was worse than this time of last year. But when you look at the guidance that we have provided here, we have already reflected that weather impact year-to-date. Now from a cadence perspective, while we don't really guide to the quarters, but what I can share from a directional perspective, for this year, you can expect potentially be very much similar to last year. So essentially, you look at 2025, I believe we generated approximately half of our earnings in the first half and in the second half, respectively, as well. So that is probably a good proxy for you to consider as you model things out. So all in all, I would say that -- from a margin perspective, I think that's your last question -- yes, so I shared a bit earlier that as a company, we're just highly focused and it's been a priority, but we've been extremely diligent with respect to prioritizing investments where it's really driving top line growth in an accelerated fashion. And then we are also diligently utilizing technology, among other things to help us become ever increasingly efficient in the way that we operate and in the way that we deliver value end-to-end to our customers and our patients. So while we do not guide margin specifically in the guidance, but what I would say is if you look at our guidance for 2026, in terms of the top line growth at the midpoint of 5.4% for the enterprise and then the midpoint of our adjusted EPS growth at 9%, you can perhaps triangulate into a margin expansion that is going to be supportive of that adjusted EPS guidance. So all in all, I would say that once again, we're really pleased with the strength of margin expansion in 2025, and we expect that strength to continue into 2026.