What does PEN stand for?
PEN stands for "PS1 and Endogenous"
How to abbreviate "PS1 and Endogenous"?
"PS1 and Endogenous" can be abbreviated as PEN
What is the meaning of PEN abbreviation?
The meaning of PEN abbreviation is "PS1 and Endogenous"
What does PEN mean?
PEN as abbreviation means "PS1 and Endogenous"
