id	keyword
iassist-724	data
iassist-724	confidentiality
iassist-724	research
iassist-724	census
iassist-724	information
iassist-724	use
iassist-724	statistical
iassist-724	protection
iassist-724	subjects
iassist-724	release
iassist-724	icpsr
iassist-724	public
iassist-724	variables
iassist-724	study