Thanks, Richard. In terms of the market research, if we look at pharmacists, Shingrix is now number 1 priority and some of the challenges that they had around staffing and elements like that have been resolved. If we look at primary care physicians and intention to recommend vaccine, again, it remains unchanged. So all of those things are pointing in the right direction. If we look at TRxs, then over 60% of them are first dose, which again is very consistent. So these are all encouraging elements. In terms of Q1, it was influenced by two distinct events, which I think will start to be watched through in Q2. The first one was, we had an inventory online versus Q1 '22. So in Q1 '22, it was 0.9%, this quarter, it was 0.6%. And as we've discussed on lots of calls before, even the steady state is around 1 to 2 million doses a month. So we expect and there are size that, that's normalizing now. And then the other thing is linked to that, the strength of retail is very much driven by the 65 and above, which you would expect with the removal of the co-pay. As you know, commercial patients don't have a co-pay. And then the second element influencing this is that we had a lower nonretail quarter 1 performance due to a very specific element, which I won't go into, but it is thoroughly addressable, and we expect to recover those patients in Q2. So you put those 2 things together, that's what explains the numbers. But as I said, very strong. If we look ex-U.S., yes, 39% of the growth, we continue to pick up reimbursement decisions. We've got expansion in Japan. We've just picked up Australia in a number of markets in Europe. We're now really starting to get traction on. Early days in China in terms of the recovery. And then, of course, in the long term, we're very focused on the booster in the IC population, but also potentially people with an additional co-morbidity to come back and rechallenge the original cohort.