参考
Mark D. Murphey, Lien T. Senchak, Pramod K. Mambalam, Chika I. Logie, Mary K. Klassen-Fischer, Mark J. Kransdorf. From the Radiologic Pathology Archives: Ewing Sarcoma Family of Tumors: Radiologic-Pathologic Correlation. (2013) RadioGraphics. doi:10.1148/rg.333135005