Prevalence of middle ear disorders in coal miners
By: Norma T. Hopkinson.
Contributors: National Institute for Occupational Safety and Health. Division of Biomedical and Behavioral Science.; Wapora, inc.
Series: NIOSH research report; DHHS (NIOSH) publication -- no. 81-101; DHHS publication -- no. (NIOSH) 81-101.
Publisher: U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occu pational Safety and Health, Division of Biomedical and Behavioral Science; For sale by the Supt. of Docs., U.S. G.P.O.
Published: 1981
Place of publication: Cincinnati, Ohio; Washington, D.C
Language: eng
Number of pages: 39
Subjects: Coal Mining.; Ear, Middle -- injuries.; Ear Canal -- injuries.; Noise, Occupational.; Air Pollutants, Occupational.; Occupational Health.
Notes: "Prepared by WAPORA, Inc."--P. iii.

"June 1981."

"210-76-0164."

Bibliography: p. 31.