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PCR-SSCP analysis of p16 gene intron 1 and exon 2. At the SSCP analysis T20 and C20 showed as A pattern; T23 and C23 showed as B pattern; T21 and C21 showed as B' and B pattern, respectively; T22 and C22 showed as B and B' pattern, respectively. T = Human hepatocarcinoma; C = Adjacent non-cancerous liver cirrhosis; N = Normal human leucocyte
