FraserJMitchellA.Kalmic idiocy. Report of a case with autopsy; with notes on 62 cases. J Ment Sci1967; 22: 169–79
2.
ForrsmanHAkessonHH. Mortality in patients with Down's syndrome. J Ment Defic Res1965; 9: 146–9
3.
ChaneyRHEymanRKMillerCR. The relationship of congenital heart disease and respiratory infections mortality in patients with Down's syndrome. J Ment Defic Res1985; 29: 23–7
4.
OlsonMIShawC-M. Presenile dementia and Alzheimer's disease in mongolism. Brain1969; 92: 147–56
5.
FidoneGS. Degenerative cervical arthritis and Down's syndrome. N Engl J Med1986; 314: 320