Sunday afternoon

Tried to work out how the dialog editor works but there is no mention of it in the help files. It would have been good to enter the patient data using a custom form but I haven't the time to waste trying to sort this out.

Had a read through a tutorial with flex which explained that putting the numbers in between ' would treat them as atoms not as numbers. I have adjusted the code and the program now runs fine.

group no_involved_nodes '0-2', '3-5', '6-8', '18+'.

question involved_nodes
how many involved_nodes are there ? ;
choose from no_involved_nodes.