McCombe, A W Hearing loss in Grand Prix motorcyclists: occupational hazard or sports injury? [electronic resource] - British journal of sports medicine Mar 1994 - 35-7 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0306-3674 Standard No.: 10.1136/bjsm.28.1.35 doi Subjects--Topical Terms: Acoustic Impedance TestsAdolescentAdultAthletic Injuries--diagnosisAudiometry, Pure-ToneCase-Control StudiesEar Protective DevicesHearing Loss, High-Frequency--diagnosisHearing Loss, Noise-Induced--diagnosisHumansMaleMotorcyclesOccupational Diseases--diagnosisTime Factors