Array CGH of 2 DBA patients with 3q deletions. (A) CGH performed on genomic DNA of EBV lines derived from 2 patients with DBA and chromosome 3q terminal deletions demonstrates single copy terminal deletions of chromosome 3q. The region (bracket) encompassing the smaller deletion (195.46Mb-qter) is enlarged in panel B. Bars to the left of data plots represent segments of copy number loss.