I am wondering if it is possible to create a macro to compare HLA data for
matches. HLA data is looking for the presence of values in column a in
column b. It is also looking for no numerical data that is not present in
column b to be present in column a. Here are a couple of examples:

column a column b
1,2 1,2,3 match since 1,2 in column a are
found in column b
1,2,7 1,2,3 mismatch since 7 in column a is not
found in columnb
1,2,3 1,2,3,7 match since 1,2,3 in column a are
found in column b

If anyone could provide help with a macro that would help with this data I
would really appreciate it.
Thank you,
E