Usefulness of Cytokeratin Fragment Antigen 21-1 Estimation in Fine-Needle Aspiration Washout Specimens in Diagnosis of Axillary Breast Cancer Metastasis. - Jadli, Mohit; Shirsath, Gaurav Rajendra; Gupta, Akanksha; Ahsan, Erna; Huda, Farhanul; Chowdhury, Nilotpal (Journal of Cytology, 2026)