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Methylation of the 5′ PCR amplicons of the HPV-16 L2 and L1 genes and the DAPK promoter in exfoliated cells of patients with abnormal Pap smears: direct sequencing of bisulfite treated and PCR amplified DNA. Each row identifies a patient in the corresponding pathological category, and each column a CpG dinucleotide in the respective genomic position of HPV16 and the DAPK gene. Black rectangles indicate methylation, white rectangles lack of methylation.
