Association of HER2-low with clinicopathological features in patients with early invasive lobular breast cancer: an international multicentric study.

Van Baelen K, Nguyen HL, Richard F, Zels G, Karsten MM, Nader-Marta G, Vermeulen P, Dirix L, Dordevic AD, de Azambuja E, Larsimont D, Maetens M, Biganzoli E, Wildiers H, Smeets A, Nevelsteen I, Neven P, Floris G, Desmedt C