Vitamin A as a means of reducing industrial deafness.
D003638:Deafness / Q000517:prevention & control*; D034381:Hearing Loss; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control*; D014801:Vitamin A / Q000628:therapy*
D014801:Vitamin A
DEAFNESS/prevention and control; OCCUPATIONAL DISEASES/prevention and control; VITAMIN A/therapy