1. Atlantoaxial instability in individuals with Down syndrome: a fresh look at the evidence;Davidson;Pediatrics,1988
2. Symptomatic atlantoaxial subluxation in persons with Down syndrome;Pueschel;J Pediatr Orthop,1984
3. Atlantoaxial instability in individuals with Down syndrome: epidemiologic, radiographic, and clinical studies;Pueschel;Pediatrics,1987