title: Retroperitoneal soft tissue sarcomas: a treatment challenge and a call for randomized trials.
authors.forename: Ole Steen
authors.initials: OS
authors.lastname: Nielsen
authors.forename: Brian
authors.initials: B
authors.lastname: O'Sullivan
mesh_terms: D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008297:Male; D010534:Peritoneal Neoplasms / Q000175:diagnosis / Q000401:mortality / Q000628:therapy*; D011379:Prognosis; D016032:Randomized Controlled Trials as Topic; D012187:Retroperitoneal Space; D018570:Risk Assessment; D012509:Sarcoma / Q000175:diagnosis / Q000401:mortality / Q000628:therapy*; D015996:Survival Rate