id	keyword
mkg-832	periodontal
mkg-832	deoxypyridinoline
mkg-832	bone
mkg-832	collagen
mkg-832	alveolar
mkg-832	level
mkg-832	periodontitis
mkg-832	loss
mkg-832	disease
mkg-832	gingival
mkg-832	subjects
mkg-832	type
mkg-832	destruction
mkg-832	biomarker