Zhu, J.; Li, W.; Zhou, J.; Chen, Y.; Zhao, C.; Zhang, T.; Peng, W.; Wang, X. The Diagnostic Value of Narrow-Band Imaging for Early and Invasive Lung Cancer: A Meta-Analysis. Clinics 2017, 72 (7), 438-448. https://doi.org/10.6061/clinics/2017(07)09.