Myxofibrosarcoma. A malignant soft tissue tumor of fibroblastic-histiocytic origin. A clinicopathologic and prognostic study of 110 cases using multivariate analysis - Merck, C; Angervall, L; Kindblom, L G; Odén, A (Acta Pathol Microbiol Immunol Scand Suppl, 1983)