[Problems encountered in sonometry in the SNGB].
D001299:Audiometry; D001530:Belgium; D006311:Hearing Disorders / Q000517:prevention & control*; D006317:Hearing Loss, Noise-Induced / Q000517:prevention & control; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control*; D011890:Railroads
Problèmes recontrés en sonométrie à la SNC.