methylation from that cell free dna which are now two allows analysis in the laboratory to distinguish between the signal from one cancer say breast from a different one say, bowel or one of the other mentions in your report. so the blood samples, it's a simple blood test, are analysed and the reports come backis are analysed and the reports come back is either showing no cancer detected or a signalfor back is either showing no cancer detected or a signal for one back is either showing no cancer detected or a signalfor one or two cancers. it's at that point that the patient if they have that signal enters into the nhs and has the appropriate diagnostic workup which ever cancer pathway is needed to either rule out a more importantly rule in cancer and hopefully at an earlier stage. rule in cancer and hopefully at an earlierstage. i5 rule in cancer and hopefully at an earlier stage.— earlier stage. is it possible to cive us earlier stage. is it possible to give us an — earlier stage. is it possible to give us an idea _ earlier stage. is it possible to give us an idea of _ earlier stage. is it possible to give us an idea of the - give us an idea of the time involved? how much time does this give you a head of ordinary symptoms emerging in which you can possibly detect a cancer? the emerging in which you can possibly detect a cancer?—