“…HPV sequence alignment and genotype-specific primer design was followed as previously reported by Nishiwaki et al 25 For PCR with HPV genotype-specific primers, 16 HPV genotypes (genotypes 6,11,16,18,30,31,33,35,39,45, 51, 52, 56, 58, 59, and 66) were detected by multiplex PCR in a single tube. PCRs were performed with a multiplex PCR kit (Qiagen Inc., Valencia, CA), following the manufacturer's instructions, with minor modifications.…”