title: Twins: mirrors of the immune system.
abstract: Twin studies are a powerful tool to assess genetic and nongenetic factors in multifactorial, immune-mediated diseases. Here, Marco Salvetti and colleagues review important results from such studies and highlight their potential value. Future developments that should help to realize the potential of twin studies are discussed.
authors.affiliation: Dept of Neurosciences of the University of Rome 'La Sapienza', Rome, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Salvetti
authors.forename: G
authors.initials: G
authors.lastname: Ristori
authors.forename: R
authors.initials: R
authors.lastname: Bomprezzi
authors.forename: P
authors.initials: P
authors.lastname: Pozzilli
authors.forename: R D
authors.initials: RD
authors.lastname: Leslie
mesh_terms: D006801:Humans; D007107:Immune System; D014427:Twins