Body Size in Five-Year-Old Twins: Heritability and Comparison to Singleton Standards

By Estourgie-van Burk G. Frederiek  

Twin Research and Human Genetics, Vol. 9, Iss. 5, 2006-10 ,pp. : 646-655

Australian Academic Press

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Genetic Analyses of Teacher Ratings of Problem Behavior in 5-Year-Old Twins

By Polderman Tinca J. C.   Posthuma Daniëlle   De Sonneville Leo M. J.   Verhulst Frank C.   Boomsma Dorret I.  

Twin Research and Human Genetics, Vol. 9, Iss. 1, 2006-02 ,pp. : 122-130

Australian Academic Press

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Cooperation and Competition as a Function of Zygosity in 7- to 9-Year-Old Twins - a comparison of Anglo-American and Chinese children

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Evolution and Human Behavior, Vol. 19, Iss. 6, 1998-11 ,pp. : 397-411

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Longitudinal Genetic Analysis of Childhood IQ in 6- and 7-year-old Russian Twins

By Malykh Sergey B.   Zyrianova Nadezhda M.   Kuravsky Lev S.  

Twin Research, Vol. 6, Iss. 4, 2003-08 ,pp. : 285-291

Australian Academic Press

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Quantitative genetic analysis of Internalising and Externalising Problems in a large sample of 3–year–old twins

By van der Valk JC   Verhulst FC   Stroet TM   Boomsma DI  

Twin Research, Vol. 1, Iss. 1, 1998-05 ,pp. : 25-33

Australian Academic Press

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