MicroRNA profiles of primary breast cancer tumors of systematically untreated and lymph node negative patients

MicroRNA profiles of primary breast cancer tumors of systematically untreated and lymph node negative patients Equal amounts of RNA from all included samples were pooled and used as common reference. The analysis was carried out as two-color microarray analysis. Individual samples were labelled with Hy3 and the common reference sample was labelled with Hy5. Hybridization, washing, and scanning (Agilent G2565CA Microarray scanner) were performed according to the recommendations provided by Exiqon.