What sorts of things can go wrong with insulin pumps?

They can go wrong with an insulin pump, David, would be pump failure, which essentially means because it's a device, it also has a battery, the new pumps actually have, it can be recharged, So they could be device failure. And so we would always advise patients to have backup injectable insulin. So in case a device would fail, there could be interference with some radiation, although most of the insulin pumps going to airports have been deemed safe, but there have been some instances in which they have malfunctioned either because of the exposure to radiation. The other thing that can go wrong would be if you're looking at a tethered pump, it essentially means a tubed pump, that the tubes can become kinked, which, and patients can not have the constant supply of the insulin, the cannulas can fall out, which is essentially the bit of the tube that goes underneath the skin. So there could be issues with cannula insertion. In rare circumstances, we've also seen, there could be many things that can go wrong insulin pump, but in rare circumstances, we've seen that not all insulins are effective to be used within the insulin pump. And some of the insulin can get crystallized, which means they're not as effective. So you have to be very careful which insulin you use within the pump to make sure that it goes with the kind of pump you're using. So it does not have, it remains effective. So there are mechanical things in crux, there are mechanical things that can go wrong with the pump. And then there are things that can go wrong with the cannula. And there are things that can go wrong with the insulin. So there are many things that can go wrong with the insulin pump therapy. And we always advise patients to have backup injectable pens because it's not a 100% reliable system. And the advice would be always to use injectable therapy in our language calling MDI.