title: Some notes on the provision of personal hearing protection for fettlers at an iron foundry.
mesh_terms: D004781:Environmental Exposure; D006317:Hearing Loss, Noise-Induced / Q000517:prevention & control*; D006801:Humans; D007501:Iron / Q000009:adverse effects*; D008670:Metals / Q000009:adverse effects; D009784:Occupational Diseases / Q000517:prevention & control*
chemical_list: D008670:Metals; D007501:Iron