Great, thanks Jason. This is Shawn again. So, yeah, let me dive deeper a little bit into the sampling process and strategy e-pharmacy because it's a great question. So, when we think of the samples, what will happen with the samples is those five day sample packs again, very similar to how contacts are provided to samples. They're really a bridge until the consumer gets started. So, those sample packs will be delivered to the optometrist by the rep, so by the representative. So the rest will show up on at the optometrist, let's, for example, say, they leave 10 samples. When they come back on their next visit, we'll take a look at the samples and make sure that they're well stocks and that they're appropriately being dispensed. Now, the e-pharmacy is disconnected from the sample. That's a separate process. So, when the patient receives their sample, and they're checking out with their optometrist, the optometrist will ask, where would you like your script to be sent? And they'll have two options. There can be sent to the e-pharmacy, or it can be sent to the retail pharmacy. No, our preference is it sent to the e-pharmacy, right? When it's sent to the e-pharmacy, what actually happens is the patient gets a text on their phone and they actually click the text, pay for their product and that shifts to their home every single month. So that's the way that e-pharmacy is set up. And now from the e-pharmacy, we'll get data directly from the e-pharmacy on a number of scripts and how often those are being ordered the samples is separate from that. That's really delivered by the rep and separate from the e-pharmacy. The great thing about the samples are since they're delivered at the optometrist location, they won't get caught up in any of your script data, if you're monitoring script data for sales.