title: Brain metastases in HER2-positive breast cancer: challenges and opportunities.
authors.affiliation: Department of Medical Oncology, Vall d'Hebron University Hospital, Passeig de la Vall d'Hebron 119-129, 08035 Barcelona, Spain. dytorrej@vhebron.net.
authors.forename: Davis
authors.initials: D
authors.lastname: Torrejón
authors.affiliation: Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
authors.forename: Serena
authors.initials: S
authors.lastname: Di Cosimo