使用鼻内镜和冠状位鼻窦ct评估一组人数为305人的经最大剂量药物治疗无效的慢性鼻-鼻窦炎患者。
A cohort of 305 consecutive patients with chronic rhinosinusitis refractory to maximal medical therapy was assessed clinically by nasal endoscopy and coronal sinus ct.
但氡子体影响、系统噪声造成的数值不稳定、剂量率具有周期性的变化均会使数据出现波动从而造成无效的报警。
However, the radon and thorium daughters effects and the system noise and their periodic changes will result in fake alarm.
但氡子体影响、系统噪声造成的数值不稳定、剂量率具有周期性的变化均会使数据出现波动从而造成无效的报警。
However, the radon and thorium daughters effects and the system noise and their periodic changes will result in fake alarm.
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