At least 12 genotypes of hepatitis C virus predicted by sequence analysis of the putative E1 gene of isolates collected worldwide.
Proc Natl Acad Sci U S A. 1993 Sep 1;90(17):8234-8. doi: 10.1073/pnas.90.17.8234.
Proc Natl Acad Sci U S A. 1993.
PMID: 8396266
Free PMC article.