Research Article

Oral Lichen Planus in Thai Patients Has a Low Prevalence of Human Papillomavirus

Figure 2

Agarose gel electrophoresis result of human papillomavirus E1 nested PCR detection. M: Marker, DNA ladder (Fermentas), S: sample, P: positive control, and N: negative control. DNA band in S4 indicates the sample with positive result.
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