1. Al-Biltagi, M. A. (2013). Echocardiography in children with Down syndrome. World Journal of Clinical Pediatrics, 2, 36–45.
2. American Academy of Pediatrics Committee on Genetics. (2001). Health supervision for children with Down syndrome. Pediatrics, 107, 442–449.
3. American Academy of Pediatrics Committee on Sports Medicine and Fitness. (1995). Atlantoaxial instability in Down syndrome: Subject review. Pediatrics, 96, 151–154.
4. American Journal of Medical Genetics. (1990). Trisomy 21 (Down syndrome). American Journal of Medical Genetics, 37(Suppl 7), 1–325.
5. Arumugam, A., Raja, K., Venugopolan, M., et al. (2015). Down syndrome-a narrative review. Clinical Anatomy, November 24. [Epub ahead of print].