DESIGN: One hundred ninety-six patients with tinnitus were divided into 2 groups.Forty-three patients, group 1, were not exposed to noise and had sensorineural hearing loss.

• 设计：将(纳入研究的)196名耳鸣患者分为两组，第一组为43名未暴露于噪声环境且有感觉神经性耳聋患者；