title: US immigration controls.
authors.forename: M
authors.initials: M
authors.lastname: Whiteside
authors.forename: S
authors.initials: S
authors.lastname: Lucas
mesh_terms: D004641:Emigration and Immigration; D006679:HIV Seropositivity; D006801:Humans; D007348:Insurance, Health / Q000191:economics; D014195:Travel; D014481:United States