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Distribution of HPV16 variant (sub) lineages in cervical squamous cell carcinoma and adenocarcinoma. HPV16 single-infection cases of squamous cell carcinoma (SCC) (n = 32) and adenocarcinoma (Ad) (n = 17) were classified into variant (sub) lineages. The prevalence of each (sub) lineage is shown as the percentage in the total number of cases in each category.
