Al-Hadi, H., and M. Sallam. “Retrieval of Dislodged Central Venous Pressure Catheters Early Experience With Three Case Presentations”. Sultan Qaboos University Medical Journal, vol. 9, no. 2, Aug. 2009, pp. 175-9, https://journals.squ.edu.om/index.php/squmj/article/view/1426.