B. S., Sanath Kumar, Rohit Date, Nicholas Woodhouse, Omayma El-Shafie, and Karin Nollain. 2014. “Successful Management of Phaeochromocytoma Using Preoperative Oral Labetalol and Intraoperative Magnesium Sulphate : Report of Four Cases”. Sultan Qaboos University Medical Journal 14 (2):236-40. https://journals.squ.edu.om/index.php/squmj/article/view/1914.