1. Mediastinum: Kuhn JP. In Kuhn JP, Slovis TL, Haller JO eds. Caffey’s Pediatric Diagnostic Imaging, 10th ed. Vol. I, 2004: 1160, Mosby.
2. Respiratory system, chapter 1. In Swischuk LE ed. Imaging of the newborn, infant & young child, 5th ed. 2004; 1, Lippincott Williams & Wilkins.