Targeted biomarker profiling of matched primary and metastatic estrogen receptor positive breast cancers. oleh Erica B Schleifman, Rupal Desai, Jill M Spoerke, Yuanyuan Xiao, Cheryl Wong, Ilma Abbas, Carol O'Brien, Rajesh Patel, Teiko Sumiyoshi, Ling Fu, Rachel N Tam, Hartmut Koeppen, Timothy R Wilson, Rajiv Raja, Garret M Hampton, Mark R Lackner