What does o-t-c stand for?

o-t-c stands for "over-the-counter"

How to abbreviate "over-the-counter"?

"over-the-counter" can be abbreviated as o-t-c

What is the meaning of o-t-c abbreviation?

The meaning of o-t-c abbreviation is "over-the-counter"

What does o-t-c mean?

o-t-c as abbreviation means "over-the-counter"