EFFECT OF NOISE ON HEARING OBSERVED IN SOME SMALL INDUSTRIAL PLANTS.
D002681:China; D006309:Hearing; D006317:Hearing Loss, Noise-Induced; D006320:Hearing Tests; D009622:Noise; D009784:Occupational Diseases; D009787:Occupational Medicine
ACOUSTIC TRAUMA; CHINA; INDUSTRIAL MEDICINE; OCCUPATIONAL DISEASES