Churojana, A. ., M. . Boonthathip, and P. . Suwanagool. “Paragangliomas of the Head and Neck: A Retrospective Review at Siriraj Hospital”. Siriraj Medical Journal, vol. 59, no. 2, Feb. 2007, pp. 52-59, https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246032.