Thanks, Christophe. So, I'll try to remember all of your questions. So first in terms of the FDA, so that they are obviously prioritizing potential therapeutics for COVID-19 and they are working not just with us, but with many companies to expedite approvals where appropriate. So, part of the reason why we chose to do the clinical study with NIAID under the NIH is to help facilitate a potential accelerated approval. So, we don't have any a guarantee though regulatory agency provide guarantee around early approvals. But there is the intent to accelerate as quickly as possible. And I think you've seen from some of the other treatments out there, the use of the emergency use authorization to provide earlier access. And so again, if we have good data coming from our clinical study, we would expect that the hyperimmune would be a candidate for emergency use authorization as well. In terms of the neutralization assay level, so we have developed a neutralization assay within the Alliance to measure what the appropriate titer would be in the final product. But as we have not yet completed the manufacturing run, we haven't been able to validate it yet. So, we will have that shortly. And in terms of the ratio of what we would expect, based on past experience, there's quite a wide range of the number of donations required to create dose for an adult. And so again until we finalize them in the first manufacturing run, we won't have the data to give a precise answer to that. But we hope to be better than the ratio that you just indicated. In terms of supply, in the end, as I mentioned, for the earlier question, we are trying to through the Alliance, maximize the potential supply available. And allow all of the Alliance members to be able to create hyperimmune supply in the end. Now, of course, all of that manufacturing capacity that is available is still dependent on the convalescent plasma collection. So, this is really the key here. And I think you will see not just from us, but from the academic centers, who are running convalescent plasma for direct transfusion studies, overall efforts to increase the awareness around the need for convalescent plasma so that we can make as much product available to treat patients worldwide.