Protocol for CLASSIC PBB: comparison of lower airway sampling strategies in children with protracted bacterial bronchitis.
Francis J GilchristMathew AspeyRobert BowlerMalcolm BrodlieSeema DesaiCaroline HarrisEmily HintonHemant KulkarniAviva OgbolosinghaIan SinhaIvonne Solis-TrapalaJoanne StockWilliam D CarrollPublished in: BMJ paediatrics open (2023)
ISRCTN79883982.
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