title: [Effect of noise proof ear plugs for protection of hearing of oil mining workers].
authors.forename: Shao-ping
authors.initials: SP
authors.lastname: Wu
authors.forename: Shao-fen
authors.initials: SF
authors.lastname: Wu
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
mesh_terms: D004430:Ear Protective Devices; D005500:Follow-Up Studies; D006317:Hearing Loss, Noise-Induced / Q000517:prevention & control*; D006801:Humans; D008297:Male; D008906:Mining; D009623:Noise, Occupational / Q000517:prevention & control*; D010578:Petroleum; D012189:Retrospective Studies
chemical_list: D010578:Petroleum