Oncologic Outcomes with De-Escalation of Axillary Surgery After Neoadjuvant Chemotherapy for Breast Cancer: Results from > 1500 Patients on the I-SPY2 Clinical Trial

Judy C. Boughey, Hongmei Yu, Kayla Switalla, Ladores Velle, Alex Lopes, Anne M. Wallace, Rachel B. Lancaster, Chantal Reyna, Todd M. Tuttle, Nora Jaskowiak, Julia Tchou, Roshni Rao, Marie Catherine Lee, Arpana Naik, Mehra Golshan, Cletus A. Arciero, Candice A. M. Sauder, Cindy Matsen, Christina Yau, Laura J. Esserman, Rita A. Mukhtar, the I-SPY2 Locoregional Working Group