Impact of Frontline Systemic Treatment Choice on Clinical Outcome in Advanced Leiomyosarcoma: A CanSaRCC Study. - Hein, Erica C. Koch; Gupta, Abha; Soroka, Hagit Peretz; Holloway, Caroline; Biffart, Brookelyn; Nessim, Carolyn; Wild, Tristan; Lajkosz, Katherine; Watson, Geoffrey A.; Razak, Albiruni Abdul; Salawu, Abdulazeez (Cancer Medicine, 2026)