Thank you, Jeremy. Thank you, Greg. A very important question. And of course, just to amplify what Jeremy said, when you look at other chronic diseases, a combination therapy is very usual, not that usual in MS. As we evaluate potential combinations, we're interested in complementarity. The first thing the patients want is ways to have impact on the disease, the progression, the disability, as well as the relapse rate. And so we're very interested in drugs that are complementary in actions, different in their effects. And in particular, these drugs that patients are going to be on for a long time. Copaxone is one drug with this incredible safety record. More than 20 years experience, great efficacy. Laquinimod is another drug that acts in a different way, acts on a totally different pathway and actually has major effect on progression and brain volume. So we're, of course, very interested to look at combinations not only in terms of subcutaneous combinations with Copaxone, but also looking at oral combinations with laquinimod. And as such, we are looking -- the most important thing is safe combinations. We need -- we want to look at drugs, in particular, that are -- have a long safety records. Of course, we're considering new orals, such as the S1P1 inhibitors, the Nrf2 activators. But each of them has very particular liabilities, and we are going to assess each of them as potential combinations with oral laquinimod. And then, of course, because of mechanism of action, complimentarity, great safety records, we're excited about the combination of Copaxone with laquinimod in novel formulations.