“…To further clarify, notwithstanding these aspects mentioned above, EBUS-TBNA is a highly valuable mediastinal staging tool [ 16 – 19 ]. For example, in one study, the overall diagnostic sensitivity, specificity, accuracy, negative predictive value, and positive predictive value of EBUS-TBNA were 95.7, 100, 97.3, 93.2, and 100%, respectively [ 16 ]. Moreover, its staging accuracy was significantly improved when EBUS-TBNA was combined with EUS-FNA [ 20 , 21 ].…”