Hearing evaluation during a ship's voyage.
D000328:Adult; D001299:Audiometry; D001309:Auditory Threshold; D006317:Hearing Loss, Noise-Induced / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009326:Naval Medicine; D009622:Noise / Q000009:adverse effects*; D012767:Ships