Occupational noise - induced hearing loss in motor - tricyclists.
D000293:Adolescent; D000328:Adult; D001642:Bicycling; D006317:Hearing Loss, Noise-Induced / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D009622:Noise / Q000009:adverse effects*; D009623:Noise, Occupational / Q000009:adverse effects*; D013177:Sports; D013785:Thailand