A CT-Based Automated Algorithm for Airway Segmentation Using Freeze-and-Grow Propagation and Deep Learning. - Syed Ahmed Nadeem; Eric A. Hoffman; Jessica C. Sieren; Alejandro P. Comellas; Surya P. Bhatt; Igor Z. Barjaktarevic; Fereidoun Abtin; Punam K. Saha (IEEE Trans. Medical Imaging, 2021)