title: Genetic diversity and evolution of retroviruses.
authors.affiliation: Tufts University School of Medicine, Boston, Massachusetts 02111.
authors.forename: J M
authors.initials: JM
authors.lastname: Coffin
mesh_terms: D000818:Animals; D005075:Biological Evolution; D014644:Genetic Variation; D006678:HIV / Q000235:genetics; D006801:Humans; D012190:Retroviridae / Q000235:genetics*