Tumour‐infiltrating lymphocytes, tertiary lymphoid structures and myxoid stroma predict upstaging of ductal carcinoma in situ in breast biopsies. - Huang, Chung‐Yen; Wang, Yu‐Jui; Hsieh, Min‐Shu; Lin, Pin‐Yu; Lee, Yi‐Hsuan (Histopathology, 2026)