Article Text
Research Article
An analysis of the parental age effect for inv dup (15).
Abstract
Parental ages and birth order were analysed in 16 sporadic cases of inv dup (15) using the method of Smith. A significant maternal age effect was apparent (dm = 5.989, SE 1.86; df = 2.02, SE 2.496; db = 0.138, SE 0.46).
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