Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A sequencing electropherogram showed frequently detected nucleotide variations in different genomic segments of HPV 16. (a) E6 T178A; (b) E7 G666A; (c) L1 G7060A; (d) LCR G7521A. (Top) Prototype sequences indicated by arrows; (bottom) variant sequences indicated by arrows.
