Use of Intraoperative Ultrasound to Achieve Gross Total Resection of a Large Cervicomedullary Ependymoma: 2-Dimensional Operative Video. Issue 4 (2nd April 2023) - Tawil, Michael; Sorour, Omar; Morshed, Ramin; Huang, Jeremy; Agarwal, Nitin; Shabani, Saman; Theodosopoulos, Philip; Mummaneni, Praveen