Thanks very much, Mike, and I'm sorry to hear about your mother. I think what's clear is we've got to be very careful, because, obviously, GPs see countless numbers of people with headaches or issues with balance or vague symptoms, such as fatigue, so it's very difficult, I think, for them to be absolutely clear. And there is already very well recognised professional guidance in place for GPs from NICE to refer adults with progressive loss of central neurological function for urgent investigation. I'm sure you will be aware that the NHS in Wales is now rolling out rapid diagnostic centres to the whole population, and I'm pleased to say that, actually, that is being used and many, many people are now being referred.