Nivatpumin, P., P. Lerdpunnaponse, and P. Decharin. “Ancient schwannoma of the spine with thoracic cavity extension in an elderly patient after COVID-19: A case report”. The Journal of Chulabhorn Royal Academy, vol. 5, no. 2, Apr. 2023, pp. 73-78, https://he02.tci-thaijo.org/index.php/jcra/article/view/257094.