id	keyword
mkg-34331	olp
mkg-34331	oral
mkg-34331	studies
mkg-34331	severity
mkg-34331	planus
mkg-34331	lichen
mkg-34331	medicine
mkg-34331	study
mkg-34331	group
mkg-34331	weeks
mkg-34331	gigi
mkg-34331	deg