title: CD4/CD8 ratios in bronchoalveolar lavage fluid: of value for diagnosing sarcoidosis?
authors.forename: U
authors.initials: U
authors.lastname: Costabel
mesh_terms: D001707:Biopsy, Needle; D001992:Bronchoalveolar Lavage Fluid / Q000166:cytology*; D016516:CD4-CD8 Ratio; D002986:Clinical Trials as Topic; D006801:Humans; D017565:Sarcoidosis, Pulmonary / Q000175:diagnosis* / Q000276:immunology; D012680:Sensitivity and Specificity