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The National Down Syndrome Project: design and implementation.
Freeman SB, Allen EG, Oxford-Wright CL, Tinker SW, Druschel C, Hobbs CA, O'Leary LA, Romitti PA, Royle MH, Torfs CP, Sherman SL. Freeman SB, et al. Among authors: tinker sw. Public Health Rep. 2007 Jan-Feb;122(1):62-72. doi: 10.1177/003335490712200109. Public Health Rep. 2007. PMID: 17236610 Free PMC article.
Preconception folic acid supplementation and risk for chromosome 21 nondisjunction: a report from the National Down Syndrome Project.
Hollis ND, Allen EG, Oliver TR, Tinker SW, Druschel C, Hobbs CA, O'Leary LA, Romitti PA, Royle MH, Torfs CP, Freeman SB, Sherman SL, Bean LJ. Hollis ND, et al. Among authors: tinker sw. Am J Med Genet A. 2013 Mar;161A(3):438-44. doi: 10.1002/ajmg.a.35796. Epub 2013 Feb 7. Am J Med Genet A. 2013. PMID: 23401135 Free PMC article.
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