Trastuzumab emtansine with or without pertuzumab versus trastuzumab with taxane for human epidermal growth factor receptor 2-positive advanced breast cancer: Final results from MARIANNE. - Perez, Edith A.; Barrios, Carlos; Eiermann, Wolfgang; Toi, Masakazu; Im, Young‐Hyuck; Conte, Pierfranco; Martin, Miguel; Pienkowski, Tadeusz; Pivot, Xavier B.; Burris, Howard A.; Petersen, Jennifer A.; De Haas, Sanne; et al. (Cancer (0008543X), 2019)