The Prevalence of Notched Audiograms in a Cross-Sectional Study of 12,055 Railway Workers

Lie, Arve; Skogstad, Marit; Johnsen, Torstein Seip; Engdahl, Bo Lars; Tambs, Kristian
Ear and Hearing Ear and Hearing 36(3): e86–e92
http://dx.doi.org/10.1097/AUD.0000000000000129