Fig. 5From: HPV18 L1 and long control region sequences variation and E6/E7 differential expression in nasopharyngeal and cervical cancers: a comparative studyPhylogenetic tree showing HPV 18 L1 sequence similarity in nasopharyngeal cancers. Sequences appeared more varied, clustering into 2 groups of very diverse sequences. Sequences in cluster 1 showed some relatedness as compared to cluster 2 which were very distinct with no clusteringBack to article page