Ralph, good morning. Appreciate the questions. So, a couple things I would highlight on the physician recruitment. Keep in mind that typically as you start to recruit physicians, there's a fairly long digestive period, and so part of the reason, obviously, for the large increase in Q1 of this year versus a year ago is we initiated those efforts a year ago at this time. So, really, you could argue in some ways a lower comp, but at the same time, a very encouraging comp in terms of growth we've had. And typically what happens is when we get a new physician recruited to use our facility, you really have almost a six-month digestive period before you really determine do they get the full run rate for you. So, a lot of times, what they'll do is they'll come in and do one or two procedures, evaluate the facility, do they actually like the facility, is it accomplishing what they wanted to accomplish. They'll look at your turnaround time and your scheduling capacity, and they'll determine if they really enjoy the nurses in the ORs that support them in that process. And so, what I would say is while really encouraging, now the next step is to see how that actually translates. Of course, we can see that our efforts from last year have translated into real EBITDA growth in same-store case volume in Q1, especially when they've adjusted, and so we think this is just another good indicator of what you could expect for the future. Relative to turnover, we don't generally lose physicians at this point beyond what I would say is normal and customary, which is those that go into retirement, those that relocate or move, and in this new world that we're in, those that are ultimately potentially getting employed by a local hospital system. But I would say our retention levels, while harder to track because you really don't know when somebody's going to move or relocate, as we've done kind of a statistical trendline, what we've seen is slight improvement over time, which means that our efforts, if anything, are kind of holding onto the workforce that we've had before versus losing them.