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Allen EG, Freeman SB, Druschel C, Hobbs CA, O’Leary LA, Romitti PA, Royle MH, Torfs CP, Sherman SL. Maternal age and risk for trisomy 21 assessed by the origin of chromosome nondisjunction: a report from the Atlanta and National Down Syndrome Projects. Human Genetics. 2008 Dec 03;125(1):41–52. doi: 10.1007/s00439-008-0603-8. |