title: The etiologic agent of sarcoidosis: what if there isn't one?
authors.forename: Marc A
authors.initials: MA
authors.lastname: Judson
mesh_terms: D000938:Antigen-Presenting Cells / Q000276:immunology; D006801:Humans; D016676:Macrophages, Alveolar / Q000276:immunology; D016273:Occupational Exposure; D017565:Sarcoidosis, Pulmonary / Q000209:etiology* / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology