[The attenuation effectiveness of earplugs sold in local market].
Lin
Y C
YC
Chen
R Y
RY
D000328:Adult; D004430:Ear Protective Devices / Q000592:standards*; D005069:Evaluation Studies as Topic; D006801:Humans; D009622:Noise / Q000517:prevention & control*; D011482:Protective Devices / Q000592:standards*