@book{330058,
	title = {Bronchus sign on thin-section computed tomography is a powerful predictive factor for successful transbronchial biopsy using endobronchial ultrasound with a guide sheath for small peripheral lung lesions: a retrospective observational study},
	publisher = {BMC Medical Imaging},
	url = {http://bmcmedimaging.biomedcentral.com/articles?tab=keyword&searchType=journalSearch&sort=PubDate&volume=15&page=2}
}