(Q50342451)
Statements
Measuring pervasive developmental disorders in children and adolescents with mental retardation: a comparison of two screening instruments used in a study of the total mentally retarded population from a designated area. (English)
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Fred Volkmar
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Annelies de Bildt
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Sjoerd Sytema
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Cees Ketelaars
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Dirk Kraijer
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Ruud Minderaa
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1 December 2003
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33
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6
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595-605
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