Tinnitus human 7 tinnitus 7 Article 6 audiology 5 Audiology 4 Bibliometrics 4 Hearing Disorders 4 Humans 4 Low level laser therapy 4 bibliometrics 4 low level laser therapy 4 Adult 3 Female 3 Male 3 adult 3 female 3 hearing disorder 3 male 3 nonhuman 3 Middle Aged 2 clinical article 2 complication 2 controlled study 2 cytochrome c oxidase 2 disease severity 2 hearing 2 hearing impairment 2 middle aged 2 perception deafness 2