Fig. 1From: Molecular detection of human papillomavirus-16 among Sudanese patients diagnosed with squamous cell carcinoma and salivary gland carcinomaPCR amplification of HPV-16. MM: molecular marker of 50 bp length. 1: Negative control, 2: Positive control, 3–5, 7–12, 14 and 15: represent HPV-16 positive samples. 6 and 13: Negative samples for the presence of HPV-16Back to article page