Borchgrevink H M
Kontor for miljømedisin, Forsvarets Sanitet, Oslo mil/Huseby.
Nord Med. 1990;105(6-7):184-6.
As a result of preventive auditory measures in the Norwegian Armed Forces conscripts as a group no longer develop noise induced hearing loss during their service. But the incidence of hearing impairments among 18-year-old Norwegian men before entering military service has increased in recent years and indicates that Norway--and other countries?--should issue noise restrictions also for leisure noise.