1. The frequency of chromosome abnormalities detected in consecutive newborn studies, differences between studies, results by sex and by severity of phenotypic involvement;Hook,1997
2. Trisomy in man;Hassold;Annu Rev Genet,1984
3. Environmental causes of aneuploidy: Why so elusive?;Kline,1985
4. Maternal smoking and trisomy among spontaneously aborted conceptions;Kline;Am J Hum Genet,1983
5. Cigarette smoking and trisomy 21 at amniocentesis;Kline;Genet Epidemiol,1993