Li W, Onishi N, Newitt D, Gibbs J, Wilmes L, Jones E, Joe B, Sit L, Yau C, Chien A, Price E, Albain K, Kuritza T, Morley K, Boughey J, Brandt K, Choudhery S, Clark A, Rosen M, McDonald E, Elias A, Wolverton D, Fountain K, Euhus D, Han H, Niell B, Drukteinis J, Lang J, Lu J, Meisel J, Mitri Z, Nanda R, Northfelt D, Sanft T, Stringer-Reasor E, Viscusi R, Wallace A, Yee D, Yung R, Asare S, Melisko M, Perlmutter J, Rugo H, Schwab R, Symmans W, van't Veer L, Berry D, DeMichele A, Abe H, Sheth D, Edmiston K, Ellis E, Ha R, Wynn R, Crane E, Dillis C, Nelson M, Church A, Isaacs C, Khan Q, Oh K, Jafarian N, Bang D, Mullins C, Woodard S, Zamora K, Ojeda-Fornier H, Sheth P, Hovanessian-Larsen L, Eghtedari M, Spektor M, Giurescu M, Newell M, Cohen M, Berman E, Lehman C, Smith W, Fitzpatrick K, Borders M, Yang W, Dogan B, Goudreau S, Brown T, Esserman L, Hylton N. Abstract PD9-04: Breast cancer subtype specific association of pCR with MRI assessed tumor volume progression during NAC in the I-SPY 2 trial. Cancer Research 2020, 80: pd9-04-pd9-04. DOI: 10.1158/1538-7445.sabcs19-pd9-04.Peer-Reviewed Original Research