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Bugalho, António; Doris, Michael K; Hamacher, Juerg; Eberhardt, Ralf; Herth, Felix J (2008). [Endobronchial ultrasound: practical aspects and clinical applications]. Revista portuguesa de pneumologia, 14(1), pp. 55-88. Lisboa: S.P.P 10.1016/S2173-5115(09)70244-1
