Increasing Hypopnea in Sleep Breathing Disturbance Improves Postoperative Oxygen Saturation in Patients with Very Severe Obstructive Sleep Apnea. - Huang, Ethan I.; Huang, Shu-Yi; Lin, Yu-Ching; Lin, Chieh-Mo; Lin, Chin-Kuo; Huang, Ying-Chih; Su, Jian-An (Applied Sciences (2076-3417), 2020)