Fertilisation Involving Ageing Gametes, Major Birth Defects, and Down's Syndrome
Simpson, Joe Leigh
Queenan, John T.
Lancet 2002 May 11; 359(9318): 1670-1671
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Hansen, Michele; Kurinczuk, Jennifer J.; Bower, Carol; Webb, Sandra (2002-03-07)BACKGROUND: It is not known whether infants conceived with use of intracytoplasmic sperm injection or in vitro fertilization have a higher risk of birth defects than infants conceived naturally. METHODS: We obtained data ...