title: BTS guidelines for investigation of unilateral pleural effusion in adults.
authors.forename: A C
authors.initials: AC
authors.lastname: Tarn
authors.forename: R
authors.initials: R
authors.lastname: Lapworth
mesh_terms: D004322:Drainage; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010996:Pleural Effusion / Q000175:diagnosis*; D017410:Practice Guidelines as Topic