id	keyword
mkg-2218	bone
mkg-2218	hydroxyapatite
mkg-2218	group
mkg-2218	metronidazole
mkg-2218	tissue
mkg-2218	osteoblast
mkg-2218	control
mkg-2218	acid
mkg-2218	hyaluronic
mkg-2218	healing
mkg-2218	test