Vira Dwi Nisrina, Yunus Kuntawi Aji, Muhammad Faris and Fadhil 2023. The versatility of intraoperative ultrasound in spine surgery for intradural tumors. Indonesian Journal of Neurosurgery. 6, 2 (Jun. 2023), 34–38. DOI:https://doi.org/10.15562/ijn.v6i2.237.