Prevalence of middle ear disorders in coal miners
By: Norma T. Hopkinson
Series: 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 Occupational Safety and Health, Division of Biomedical and Behavioral Science
Published: 1981
Place of publication: Cincinnati, Ohio
Language: eng