Proliferation and estrogen signaling can distinguish patients at risk for early versus late relapse among estrogen receptor positive breast cancers - Bianchini, Giampaolo; Pusztai, Lajos; Karn, Thomas; Iwamoto, Takayuki; Rody, Achim; Kelly, Catherine M.; Müller, Volkmar; Schmidt, Marcus; Qi, Yuan; Holtrich, Uwe; Becker, Sven; Santarpia, Libero; et al. (Breast cancer research, 2013)