id	keyword
mkg-33737	pain
mkg-33737	orofacial
mkg-33737	knowledge
mkg-33737	neuralgia
mkg-33737	students
mkg-33737	postherpetic
mkg-33737	clinical
mkg-33737	syndrome
mkg-33737	mouth
mkg-33737	material
mkg-33737	respondents