id	keyword
bjos-8667560	honey
bjos-8667560	ras
bjos-8667560	patients
bjos-8667560	study
bjos-8667560	oral
bjos-8667560	treatment
bjos-8667560	lemon
bjos-8667560	recurrent
bjos-8667560	doi
bjos-8667560	pain
bjos-8667560	stomatitis
bjos-8667560	spray
bjos-8667560	effects
bjos-8667560	group