This shows the screen within the ICE system into which staff input whether it is possible to do the 12-lead ECG.

This resource can be downloaded or viewed using the link: ecg_meth.png

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ctsu.ox.ac.uk/ukb/ukb/images/ecg_meth.png