title: Introduction, epidemiology and classification.
authors.affiliation: Department of Medicine, National Naval Medical Center, Bethesda, MD, USA.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Summerlee
authors.forename: Catherine F
authors.initials: CF
authors.lastname: Decker
mesh_terms: D006801:Humans; D015995:Prevalence; D014376:Tuberculosis / Q000145:classification* / Q000453:epidemiology*