R. Reddy, MD, D. Adamo, RPSGT, T. Kufel, MD, J. Porhomayon, MD, and A. A. El-Solh, MD, MPH, “Treatment of opioid-related central sleep apnea with positive airway pressure: A systematic review”, J of Opioid Management, vol. 10, no. 1, pp. 57–62, Jan. 2014.