Dr. Colin Doherty:

I am in favour of getting over a certain level of scientific evidence that my colleagues and I will be happy with, but that will only be the start of the journey for us because then we were in a phase where will be observing it and waiting to see if anything happens to people on the drug two or three years down the line . We will always be monitoring that. The game only starts for us when we get over the initial hurdle. What I am saying is we have not got over the initial hurdle yet. The initial hurdle is getting those-----