id	keyword
mkg-21547	periodontal
mkg-21547	collagen
mkg-21547	oil
mkg-21547	lemuru
mkg-21547	fish
mkg-21547	density
mkg-21547	ligament
mkg-21547	width
mkg-21547	gel
mkg-21547	gingivalis
mkg-21547	tissue
mkg-21547	groups