id	keyword
bam-12993	patients
bam-12993	vitamin
bam-12993	study
bam-12993	sclerosis
bam-12993	polymorphisms
bam-12993	gene
bam-12993	control
bam-12993	vitamin d
bam-12993	receptor
bam-12993	group
bam-12993	levels
bam-12993	rrms
bam-12993	test