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为了考核“脑力健”营养饮料对儿童听力的影响,于1984年9月和85年1月对125名儿童的听力及体内营养素的情况进行了调查。对象和方法一、实验对象:选择我省农村非缺碘地区中上经济水平的中山市三乡雍陌小学作为现场观察点。对年龄在10～13岁儿童进行听力测定。受检学生在实验前做一般体检及详细的耳鼻咽喉科检查。剔除耳疾、耳咽管、鼻部疾患所致的听力障碍。
In order to assess the impact of “mental health” nutritional supplements on children’s hearing, the hearing and in vivo nutrient status of 125 children were investigated in September 1984 and January 1985. Subjects and Methods 1. Subjects: Zhongshan Township, Zhongshan Township, Yongzhong Primary School, which selected middle and upper class economically non-iodine-deficient areas in our province, was selected as the on-site observation point. Aged children aged 10 to 13 years for audiometry. Subjects to be tested before the general examination and a detailed examination of otolaryngology. Excluding ear diseases, ear pharynx, nasal disorders caused by hearing disorders.