Fig. 2From: Human papillomavirus genotypes associated with cervical precancerous lesions and cancer in the highest area of cervical cancer mortality, Longnan, ChinaDistribution of HPV infection in the study groups. ** P < 0.01 vs. SCC; *** P < 0.001 vs. SCC. Percentages for co-infections with two or more HPV strains were calculated separately for each one. Abbreviations: HPV, human papillomavirus; CIN, cervical intraepithelial neoplasia; SCC, squamous cell carcinoma Back to article page