The Role of Sentinel Lymph Node Biopsy in Breast Cancer Patients Who Become Clinically Node-Negative Following Neo-Adjuvant Chemotherapy: A Literature Review oleh Giulia Ferrarazzo, Alberto Nieri, Emma Firpo, Andrea Rattaro, Alessandro Mignone, Flavio Guasone, Augusto Manzara, Giuseppe Perniciaro, Stefano Spinaci