title: Endobronchial ultrasound: real progress or just a new toy?
authors.forename: T J
authors.initials: TJ
authors.lastname: Williams
authors.forename: D T
authors.initials: DT
authors.lastname: Keating
mesh_terms: D001707:Biopsy, Needle; D001980:Bronchi / Q000000981:diagnostic imaging* / Q000473:pathology; D019160:Endosonography / Q000706:statistics & numerical data*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging*