Description
Frozen tissue specimens from primary breast tumors were collected under IRB-approved protocols from 2 medical centers and profiled using Affymetrix U133 series expression microarrays. This cohort comprises of two subcohorts derived from the Institute Jules Bordet (IJB), Brussels (n=41) (2002) and Guys Hospital, London (n=7) (2003). Dr. Christos Sotiriou (Institute Jules Bordet) directed the microarray work in Brussels.