Yes, so David, this is Peter. I'll make a couple comments, and Jack, if you want to jump in. I would also comment for everyone, I mean, we're going to spend some time on this as well later today at our Investor Day, so we'll talk. But fundamentally, if you look at spine, and I just want to kind of rebounds [ph], why we moved into spine. It's still a very large market with, we believe, a lot of potential for a company like Integra over the mid- to long-term range, and we think about that over the next 3 to 5 years. As far as the aging population, where it's headed, the technologies that are out there, and really, what leading technologies are going to evolve, and those are primarily going to be regenerative, which is one of our core competencies. That being said to your question, David, the market now, and we don't think it's going to change in any quarters anytime soon, are going to be rocky. And so what we've seen, as I commented in my prepared notes, is very consistent with what you've heard with other folks so far from some of the earnings reports that a lot of the procedures -- the demand has been out there, but a lot of the procedures are getting added questions, added components that either are delaying or having surgeons specifically have to address the payers' needs that, in many cases, they haven't had to do in previous quarters. And that results then either in procedures being delayed and potentially canceled. But I don't have any facts relative to what that mix is between delays or cancels. I think to Jack's point as well on OrthoBiologics, we've done quite well, but the phenomena also can affect a biologic the same way it can a metal implant. Clearly, the metal implants have had a bigger impact mainly because of pricing pressure and the combination of these, where we haven't had the same type of pricing pressure in overall OrthoBiologics. So I mean, Jack, any other comments you'd add?