Al-Abri, M. A., and K. M. Al-Hashmi. “Obstructive Sleep Apnoea/Hypopnoea Syndrome and Hypertension”. Sultan Qaboos University Medical Journal, vol. 8, no. 3, Nov. 2008, pp. 266-74, https://journals.squ.edu.om/index.php/squmj/article/view/1373.