International Multicenter Retrospective Study From the Ultra-rare Sarcoma Working Group on Low-grade Fibromyxoid Sarcoma, Sclerosing Epithelioid Fibrosarcoma, and Hybrid Forms: Outcome of Primary Localized Disease.

In terms of anatomic locations, there is a nonsignificant trend in favor of better local control in extremities compared with chest and retroperitoneum/abdomen and other sites (Supplementary Table 2, Supplemental Digital Content 2, http://links.lww.com/PAS/B961 ).

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