title: Double infections with human immunodeficiency virus types 1 and 2 in Spanish subjects.
authors.forename: M T
authors.initials: MT
authors.lastname: Gorriño
authors.forename: M
authors.initials: M
authors.lastname: Mar Mateos
authors.forename: L
authors.initials: L
authors.lastname: Sarria
authors.forename: R
authors.initials: R
authors.lastname: Cisterna
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000382:microbiology*; D015497:HIV-1; D015498:HIV-2; D006801:Humans; D013030:Spain