Refill Rates of Accessories for Positive Airway Pressure Therapy as a Surrogate Measure of Long-Term Adherence Refill Rates of Accessories for Positive Airway Pressure Therapy as a Surrogate Measure of Long-Term Adherence Download Obstructive Sleep Apnea Syndrome and Perioperative Complications: A Systematic Review of the Literature Relative Prolongation of Inspiratory Time Predicts High versus Low Resistance Categorization of Hypopneas