Frequency and predictors of palliative sedation among patients with cancer who died in a specialist inpatient palliative care unit: a retrospective study - Torres-Tenor, Juan Luis; Villalba-Cuesta, Paula; Bruera, Eduardo; Vilches-Aguirre, Yolanda; Varela-Cerdeira, Maria; Alonso-Babarro, Alberto (BMC PALLIATIVE CARE, 2025)