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Macro-DNA array analysis of a subtracted colon cancer cDNA library prepared by suppression subtractive hybridisation. Reverse northern hybridisation of macro arrays spotted with individual clones with α32P labelled cDNA probes synthesised from cancerous and non-cancerous tissue was performed. The spots indicated by the arrowheads show signals more than five times as intense with the cancer tissue cDNA probe (A) than with the non-cancerous mucosa cDNA probe (B).
