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Diagnostic value of endobronchial and endoscopic ultrasound-guided fine needle aspiration for accessible lung cancer lesions after non-diagnostic conventional techniques: a prospective study

Antonio Bugalho*, Dalila Ferreira, Ralf Eberhardt, Sara S Dias, Paula A Videira, Felix J Herth and Luis Carreiro

BMC Cancer 2013, 13:130  doi:10.1186/1471-2407-13-130