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We studied the relationships between genetic and epigenetic alterations in gastrointestinal cancer by integrating DNA copy number changes determined by arbitrarily primed PCR (AP-PCR) with DNA methylation variations estimated by methylation-sensitive amplified fragment length polymorphism (MS-AFLP). We analyzed about 100 different chromosomal regions by AP-PCR and over 150 random CpG loci by MS-AFLP...
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