LETTER TO THE EDITOR: DIZYGOTIC TWINS CONCORDANT FOR DOWN SYNDROME: IMPLICATION FOR ESTABLISHING A NATIONAL BIRTH DEFECT REGISTRY IN IRAN

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SAVAD SHAHRAM; HAMZEHLOU SEPIDEH; GHAFFOURIAN ABADI JILA; MODARRESSI MOHAMMAD HOSSEIN; NOORIAN SHAHAB

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Journal: Iranian Journal of Public Health Year:2016 | Volume:45 | Issue:12 Page(s): 1667-1668

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Title

LETTER TO THE EDITOR: DIZYGOTIC TWINS CONCORDANT FOR DOWN SYNDROME: IMPLICATION FOR ESTABLISHING A NATIONAL BIRTH DEFECT REGISTRY IN IRAN

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Abstract

Dear Editor-in-Chief The prevalence of Down Syndrome (DS) has in-creased in association with increasing maternal age (1). The prevalence of multiple births, particularly dizygotic births has also increased in association with increasing maternal age (2). Surprisingly, the risk of DS in twins is significantly lower than in singletons due to early fetal loss of DS in multiple pregnancies, particularly in pregnancies concordant for DS (2).

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APA: Copy

SAVAD, SHAHRAM, HAMZEHLOU, SEPIDEH, GHAFFOURIAN ABADI, JILA, MODARRESSI, MOHAMMAD HOSSEIN, & NOORIAN, SHAHAB. (2016). LETTER TO THE EDITOR: DIZYGOTIC TWINS CONCORDANT FOR DOWN SYNDROME: IMPLICATION FOR ESTABLISHING A NATIONAL BIRTH DEFECT REGISTRY IN IRAN. IRANIAN JOURNAL OF PUBLIC HEALTH, 45(12), 1667-1668. SID. https://sid.ir/paper/274454/en

Vancouver: Copy

SAVAD SHAHRAM, HAMZEHLOU SEPIDEH, GHAFFOURIAN ABADI JILA, MODARRESSI MOHAMMAD HOSSEIN, NOORIAN SHAHAB. LETTER TO THE EDITOR: DIZYGOTIC TWINS CONCORDANT FOR DOWN SYNDROME: IMPLICATION FOR ESTABLISHING A NATIONAL BIRTH DEFECT REGISTRY IN IRAN. IRANIAN JOURNAL OF PUBLIC HEALTH[Internet]. 2016;45(12):1667-1668. Available from: https://sid.ir/paper/274454/en

IEEE: Copy

SHAHRAM SAVAD, SEPIDEH HAMZEHLOU, JILA GHAFFOURIAN ABADI, MOHAMMAD HOSSEIN MODARRESSI, and SHAHAB NOORIAN, “LETTER TO THE EDITOR: DIZYGOTIC TWINS CONCORDANT FOR DOWN SYNDROME: IMPLICATION FOR ESTABLISHING A NATIONAL BIRTH DEFECT REGISTRY IN IRAN,” IRANIAN JOURNAL OF PUBLIC HEALTH, vol. 45, no. 12, pp. 1667–1668, 2016, [Online]. Available: https://sid.ir/paper/274454/en

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