Figure 1From: The role of histologic subtype, p16INK4a expression, and presence of human papillomavirus DNA in penile squamous cell carcinomaRepresentative results of HPV genotyping using a PCR-based approach. First lane shows a HPV-16-positive case, while in lane 2, no HPV DNA was detectable. Lane 3 shows detection of LR-HPV DNA that was later identified as HPV isoform 6. LR-HPV, low-risk human papillomavirus.Back to article page