What does DDQ stand for?
DDQ stands for "Demographic Data Questionnaire"
How to abbreviate "Demographic Data Questionnaire"?
"Demographic Data Questionnaire" can be abbreviated as DDQ
What is the meaning of DDQ abbreviation?
The meaning of DDQ abbreviation is "Demographic Data Questionnaire"
What does DDQ mean?
DDQ as abbreviation means "Demographic Data Questionnaire"
