TY - JOUR AU - Dehner, L P TI - Primitive neuroectodermal tumor and Ewing's sarcoma JO - Am J Surg Pathol IS - 01 VL - 17 PY - 1993 DO - 10.1097/00000478-199301000-00001 L3 - PubMed-ID: 8383465 SP - 1 EP - 13 ER -