The sensitivity , negative predictive value , and diagnostic accuracy of the endoscopic staging modalities , respectively , were EBUS , @ % ( @ % CI , @-@ @ ) , @ % ( @-@ @ ) , and @ % ( @-@ @ ) ; EUS , @ % ( @-@ @ ) , @ % ( @-@ @ ) , and @ % ( @-@ @ ) ; and combined EBUS/EUS , @ % ( @-@ @ ) , @ % ( @-@ @ ) , and @ % ( @-@ @ ) .