Ear oxygen saturation(SaO_2),chest wall movement,nostril air flow and EEG tracings were monitored during nocturnal sleep in 9 healthy subjects and 16 patients with chronic opstructive pulmonary disease (COPD).

• 作者对9例健康成年人及16例 COPD 患者进行了睡眠时 Sao_2、胸廓运动和鼻气流和 EEG 连续观察记录。