PAM50 assay and the three-gene model for identifying the major and clinically relevant molecular subtypes of breast cancer - Prat, A. (Universitat Autònoma de Barcelona. Departament de Medicina) ; Parker, J. S. (Lineberger Comprehensive Cancer Center, University of North Carolina, CB# 7295, Chapel Hill, NC 27599 USA) ; Fan, C. (Lineberger Comprehensive Cancer Center, University of North Carolina, CB# 7295, Chapel Hill, NC 27599 USA) ; Perou, Charles M. (Department of Pathology & Laboratory Medicine, University of North Carolina, Chapel Hill, NC USA)