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a) Factors influencing the risk of bleeding. b) Risk of bleeding for different procedures. Risk of bleeding is given as an estimated risk inferred from the available literature and according to the authors’ experience. BAL: bronchoalveolar lavage; EBB: endobronchial biopsy; EBUS: endobronchial ultrasound; TBNA: transbronchial needle aspiration; TBLB: transbronchial lung biopsy.
