Figure 1.

Representative results of microarray images from 3 primary GC samples by microdissection. "T" for tumor tissue and "N" for matched adjacent non-tumor tissue. (Each probe was printed twice and shown as neighboring spots. Spots in red and green, homozygous; yellow, heterozygous; and dark, low signal represented no signal or too low for genotype calls. White pane represented LOH, which is homozygous in tumor tissue but heterozygous in matched non-tumor tissue.)