What does OPR stand for?
OPR stands for "ortho-to-para ratio"
How to abbreviate "ortho-to-para ratio"?
"ortho-to-para ratio" can be abbreviated as OPR
What is the meaning of OPR abbreviation?
The meaning of OPR abbreviation is "ortho-to-para ratio"
What does OPR mean?
OPR as abbreviation means "ortho-to-para ratio"
