1. Trisomy 22: a clinically identifiable syndrome;Birth Defects, XI,1975
2. Zellweger, H., Ionasescu, V., and Simpson, J. (1975). Trisomy 22.
3. Journal de Gdnitique Humaine, 23, 65-75.
4. The first case of partial trisomy 18 involving a translocation (with a D group chromosome) was reported in 1962 by Brodie and Dallaire. Since that time numerous cases have been reported involving translocation of 18q material with B group chromosomes (Gagnon et al, 1963; Valdmanis;Wilton;et al; Alberty et al, 1968; France and Butler, 1969; Eriksson,1967
5. 1963), and with E group chromosomes;chromosomes (Orye; vanCaster, 1972), D group (Hecht,1974