Sengupta, S., R. K. Dey, A. Sati, and K. Ghosh. “Case Report on a Very Rare Tumour of the Urinary Bladder: Paraganglioma”. International Journal of Advances in Medicine, vol. 7, no. 11, Oct. 2020, pp. 1753-5, doi:10.18203/2349-3933.ijam20204532.