id	keyword
bjos-8661654	snp
bjos-8661654	periodontitis
bjos-8661654	doi
bjos-8661654	perio4c
bjos-8661654	il-10
bjos-8661654	rs6667202
bjos-8661654	periodontol
bjos-8661654	patients
bjos-8661654	group
bjos-8661654	study
bjos-8661654	pockets
bjos-8661654	levels