What does NTU stand for?

NTU stands for "non-tobacco user(s)"

How to abbreviate "non-tobacco user(s)"?

"non-tobacco user(s)" can be abbreviated as NTU

What is the meaning of NTU abbreviation?

The meaning of NTU abbreviation is "non-tobacco user(s)"

What does NTU mean?

NTU as abbreviation means "non-tobacco user(s)"