Palma, E. C., R. Rodríguez Martínez, and C. Garbino. “Technique and Results of Direct Measurement of Intracranif Pressure”. Revista Cirugía Del Uruguay, vol. 50, no. 2, Mar. 1980, pp. 148-52, https://revista.scu.org.uy/index.php/cir_urug/article/view/3147.