High tumor expression of CTLA4 identifies lymph node-negative basal-like breast cancer patients with excellent prognosis. - Røssevold AH; Tekpli X; Lingjærde OC; Russnes HG; Vallon-Christersson J; Borgen E; Lømo J; Garred Ø; Dorraji E; Kristensen VN; Naume B; Kyte JA (Communications medicine, 2025)