id	keyword
crl-16640	articles
crl-16640	libraries
crl-16640	academic
crl-16640	number
crl-16640	study
crl-16640	journals
crl-16640	authors
crl-16640	u.s
crl-16640	percent
crl-16640	usal
crl-16640	research
crl-16640	university
crl-16640	year
crl-16640	publication
crl-16640	library
crl-16640	lis