Is there a way to enclose a fileld name in parenthesis in biobliography?

The output style is Vancouver.
The journal requirement is (Suppl).
The journal template which I used is:


This is the best I could do:
Gautherie M: Clinical studies of the vibration syndrome using a cold stress test measuring finger temperature. Cent Eur J Public Health 3 Suppl, 5-10 (1995)

What I tried was to cut/paste “Suppl” from Volume field to Parts/Supplement field and subsequently insert Parts/Supplement filed in the Journal template. However, this does not work.

Is there a way a to modify journal template in such a way that Suppl is enclosed in parenthesis (Suppl) as journal requires ?

Thank you!. This works.

BTW, this reference in database was imported from PubMed as is:


What I tried instead was to cut/paste Suppl in database Part/Supplement field and to insert Part/Supplement field in Journal Article template next to volume.
In that case It didn’t make difference whether there was the parenthesis in that field around Suppl or not.
However, it might be that I made syntax error.
BTW, is there a solution for what I tried to do. What the modified Journal article field should like for this to work ?