1. A New Morphologic Classification of Congenital Tracheobronchial Stenosis 
Simone Speggiorin, MD, Michele Torre, MD, Derek J. Roebuck, MD, MRCPCH, Clare A. McLaren, DCR(R), Martin J. Elliott, MD, FRCS 
The Annals of Thoracic Surgery 
Volume 93, Issue 3, Pages (March 2012)
DOI: /j.athoracsur
Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
This figure illustrates the four anatomic variants (types) of the tracheobronchial anatomy and the subdivision into congenital tracheobronchial stenosis (CTBS) or congenital tracheal stenosis (CTS) according to the involvement of the bronchus by the stenosis or not. The stenotic segment is pictured in red. The frequencies of each subgroup are indicated in parentheses. (RULB = right upper lobe bronchus.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2012 The Society of Thoracic Surgeons Terms and Conditions