Cancer surgical outcome study in Ethiopia: A 7-day multicenter prospective observational cohort study - Atalel Fentahun Awedew; Yonatan Abie Tsegaye; Addisu Assfaw Ayen; Fisiha Guade Tesifaw; Bedemariam Tadesse Amsalu; Amsalu Molla Getahun (PLoS ONE, 2026)