Moscote-Salazar, L. R., and H. R. Alvis-Miranda. “A Proposal for a New Pial Arteriovenous Fistulas Grading Scale for Neuroendovascular Procedures and Literature Review”. Romanian Neurosurgery, vol. 20, no. 4, Dec. 2013, pp. 342-50, https://journals.lapub.co.uk/index.php/roneurosurgery/article/view/711.