id	keyword
mkg-866	piper
mkg-866	betle
mkg-866	linn
mkg-866	extract
mkg-866	streptococcus
mkg-866	iodine
mkg-866	viridans
mkg-866	povidone
mkg-866	test
mkg-866	research
mkg-866	piper betle
mkg-866	betle linn
mkg-866	linn extract
mkg-866	stomatitis
mkg-866	group