Journal ArticleAuthors William Good; James Jan; C Hoyt; F Billson; P Schoettker; K KlaegerJournalDevelopmental Medicine and Child NeurologyVolume39Issue6Number of Pages421-4Year of Publication1997URLhttps://doi.org/10.1111/j.1469-8749.1997.tb07458.xPubMedDOIGoogle Scholar Download Publication