Prognostic significance of circulating tumor DNA in early breast cancer: a systematic review and meta-analysis. - Sisca L; Polito MG; Silletta M; La Cesa A; Scafetta R; Donato M; Gullotta CM; Guarino A; Barnini G; Speziale E; Troiano R; Foderaro S; et al. (Breast cancer research and treatment, 2026)