title: Risk to UK heterosexuals of contracting AIDS abroad.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000635:transmission*; D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D012725:Sexual Behavior; D014195:Travel; D006113:United Kingdom