So let me get the understanding that we're just talking about pain, but from my understanding, there's different types of pain and some which painkillers are really useful and other things where that will not necessarily work.

Yes.

So acute pain, painkillers are absolutely the right thing.

If you've put your back out gardening or you've sprayed something, acute pain relief, absolutely the right thing.

If you have end of life care, if you're looking at sort of cancer pain, tumour pain or extensive damage due to some kind of operation, acute pain is absolutely well dealt with painkillers.

But that big gap in the middle where people have pain that just doesn't resolve.

We define chronic pain as being three months or more.

And if we... do that how long do we need to do that for that app or that message or the signaling system