What does PPD stand for?

PPD stands for "Purified Protein Derivative"

How to abbreviate "Purified Protein Derivative"?

"Purified Protein Derivative" can be abbreviated as PPD

What is the meaning of PPD abbreviation?

The meaning of PPD abbreviation is "Purified Protein Derivative"

What does PPD mean?

PPD as abbreviation means "Purified Protein Derivative"