Atlantoaxial Instability in Monozygotic Twins with Down's Syndrome

Keats TE Lusted LB . Atlas of roentgenographic measurement, 5th edn. Chicago: Yearbook Medical, 1985:113.

Hincke VC Hopkins CE . Measurement of the Atlantodental interval in the adult. AJR 1960;84:945.

Jayson MIV Grennan DM . Clinical features of rheumatoid arthritis. In: Weatherall DJ Ledingham JGG Warell DA , eds. Oxford textbook of medicine. Oxford: OUP, 1988.

Craniocervical abnormalities in Down's syndrome. Dev Med Child Neurol 1983;25:251–5.

Collacott RA . Atlantoaxial instability in Down's syndrome. BMJ 1987;294:988–9.

Roy M Baxter M Roy A . Atlantoaxial instability in Down's syndrome — guidelines for screening and detection. J Roy Soc Med 1990;83:433–5.

Pueschel SM Scola FH . Atlantoaxial instability in individuals with Down syndrome: Epidemiologic, radiographic and clinical studies. Pediatrics 1987;80:555–60.

Burke SW French HG Roberts JM Johnstone CE cloud TS White III Edmunds JO Jr . Chronic atlantoaxial instability Down syndrome. J Bone Joint Surg 1985;67:1356–60.