title: Controversial role of smallpox on historical positive selection at the CCR5 chemokine gene (CCR5-Delta 32).
authors.forename: Shailendra K
authors.initials: SK
authors.lastname: Saxena
mesh_terms: D005787:Gene Frequency; D006801:Humans; D008958:Models, Molecular; D017434:Protein Structure, Tertiary; D019713:Receptors, CCR5 / Q000737:chemistry / Q000235:genetics*; D012641:Selection, Genetic; D017384:Sequence Deletion; D012899:Smallpox / Q000235:genetics*; D012901:Variola virus / Q000472:pathogenicity*
chemical_list: D019713:Receptors, CCR5