Wiffen, Phil J., Maha Al-Khaduri, and Khadra Galaa. “Selections from the Cochrane Library”. Sultan Qaboos University Medical Journal 12, no. 4 (November 1, 2012): 539–541. Accessed July 25, 2024. https://journals.squ.edu.om/index.php/squmj/article/view/1739.