Occupational health.
D001847:Bone Diseases / Q000209:etiology / Q000517:prevention & control*; D004242:Diving; D006306:Health Surveys; D006801:Humans; D006931:Hyperbaric Oxygenation / Q000009:adverse effects; D009336:Necrosis / Q000517:prevention & control; D009784:Occupational Diseases / Q000517:prevention & control*; D009786:Occupational Health Services; D014481:United States