المؤلفون: Boyd, Roslyn, Fatone, Stefania, Rodda, Jill, Olesch, Christine, Starr, Roland, Cullis, Elise, Gallagher, Donnacha, Carlin, John B, Nattrass, Gary R, Graham, Kerr

المصدر: Developmental Medicine & Child Neurology ; volume 41, issue 10, page 676-682 ; ISSN 0012-1622 1469-8749

الاتاحة: http://dx.doi.org/10.1111/j.1469-8749.1999.tb00522.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-8749.1999.tb00522.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-8749.1999.tb00522.x