Genetic and Environmental Influences on Vocabulary and Reading Development.
Olson RK, Keenan JM, Byrne B, Samuelsson S, Coventry WL, Corley R, Wadsworth SJ, Willcutt EG, Defries JC, Pennington BF, Hulslander J. Genetic and Environmental Influences on Vocabulary and Reading Development. Sci Stud Read. 2011; 15(1):26-46.