id	keyword
dentistry3000-27	pmid
dentistry3000-27	gene
dentistry3000-27	tnfa
dentistry3000-27	periodontitis
dentistry3000-27	polymorphism
dentistry3000-27	-­‐308
dentistry3000-27	allele
dentistry3000-27	tumor
dentistry3000-27	necrosis
dentistry3000-27	brazilian
dentistry3000-27	disease