title: Targeted Therapies in Breast Cancer: New Approaches and Old Challenges.
authors.affiliation: Dept. of Gynecology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Isabell
authors.initials: I
authors.lastname: Witzel
authors.affiliation: Dept. of Gynecology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Volkmar
authors.initials: V
authors.lastname: Müller