What does ppd stand for?
ppd stands for "pervasive devel disorder"
How to abbreviate "pervasive devel disorder"?
"pervasive devel disorder" can be abbreviated as ppd
What is the meaning of ppd abbreviation?
The meaning of ppd abbreviation is "pervasive devel disorder"
What does ppd mean?
ppd as abbreviation means "pervasive devel disorder"
