1. Taybi H, Lachman R. Radiology of syndromes, metabolic disorders, and skeletal dysplasias. Mosby. ISBN:0815187092.
2. Chernoff N, Rogers JM. Supernumerary ribs in developmental toxicity bioassays and in human populations: incidence and biological significance. J Toxicol Environ Health B Crit Rev. 2004;7 (6): 437-49.
3. Foley WJ, Whitehouse WM. Supernumerary thoracic ribs. Radiology. 1969;93 (6): 1333-4.
4. Glass RB, Norton KI, Mitre SA, Kang E. Pediatric ribs: a spectrum of abnormalities. (2002) Radiographics : a review publication of the Radiological Society of North America, Inc. 22 (1): 87-104.
5. Melhem RE, Fahl M. Fifteen dorsal vertebrae and rib pairs in two siblings. (1985) Pediatric radiology. 15 (1): 61-2.