id	keyword
mkg-2770	group
mkg-2770	chitosan
mkg-2770	scaffold
mkg-2770	collagen
mkg-2770	bone
mkg-2770	collagen scaffold
mkg-2770	rankl
mkg-2770	control
mkg-2770	chitosan scaffold
mkg-2770	osteoclasts
mkg-2770	expressions
mkg-2770	control group