so the epidiolex, this product contains a single molecule from cannabis. it does not make you high, but it appears, of course, to have these encouraging effects. different molecules within the cannabis plant. so it's important to understand that when we talk about or you refer to marijuana, in our eyes, we're not talking about one thing. we're talking about different molecules that all come from this very interesting plant source. >> also i think it's fair to say that there are -- we cannot get necessarily proper dosing in the kind of the thing that the united states is doing. nor can you necessarily preclude the marijuana, so to speak, isn't laced with something in our country, versus what you're doing, which is pure. >> well, the fundamental principle that we operate to is it really should be the fda that determine whether a medicine should be made available. as you talk about, it's not just about safety and efficacy. the control of the manufacturing process guaranteeing that the formulation that a child takes every day is identical and that it's been ri