Tracheobronchial tree
Trachea (anteroposterior)
Newborn
Table
Radiography (Lateral)
C5 4.5 mm
T1 3.9 mm
T3 3.5 mm
Reference
Donaldson SW, Tompsett AC. Tracheal diameter in the normal newborn infant. Am J Roentgenol Radium Ther Nucl Med. 1952;67 (5): 785-7.
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