Wu, C. C., S. Mohydin, J. Xu, and R. Sharma. “Epithelioid Angiosarcoma Arising from Schwannoma: Report of a Rare Case and Potential of Circulating Tumor DNA As a Useful Biomarker”. International Surgery Journal, vol. 13, no. 6, May 2026, pp. 1039-42, doi:10.18203/2349-2902.isj20261580.