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Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies|October 18, 2016
Genetic Etiologies of Comorbidity and Stability for Reading Difficulties and ADHD: A Replication StudySally J Wadsworth, John C DeFries, Erik G Willcutt, et al.Dyslexia (Chichester, England)|April 16, 2009
Gender ratios for reading difficultiesJesse L Hawke, Richard K Olson, Erik G Willcut, et al.Behavior Genetics|January 25, 2011
DeFries-Fulker analysis of longitudinal reading performance data from twin pairs ascertained for reading difficulties and from their nontwin siblingsRaven L Astrom, Sally J Wadsworth, Richard K Olson, et al.Learning and Individual Differences|August 29, 2012
Genetic and environmental etiologies of reading difficulties: DeFries-Fulker analysis of reading performance data from twin pairs and their nontwin siblingsRaven L Astrom, Sally J Wadsworth, Richard K Olson, et al.Adoption Quarterly|July 9, 2013
Design, Utility, and History of the Colorado Adoption Project: Examples Involving Adjustment InteractionsSally Ann Rhea, Josh B Bricker, Robin P Corley, et al.Journal of Child Psychology and Psychiatry, and Allied Disciplines|October 7, 2014
Sex differences in ADHD symptom severityAnne B Arnett, Bruce F Pennington, Erik G Willcutt, et al.Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies|November 6, 2015
The Colorado Longitudinal Twin Study of Reading Difficulties and ADHD: Etiologies of Comorbidity and StabilitySally J Wadsworth, John C DeFries, Erik G Willcutt, et al.Psychological Assessment|May 18, 2011
Colorado Learning Difficulties Questionnaire: validation of a parent-report screening measureErik G Willcutt, Richard Boada, Margaret W Riddle, et al.Behavior Genetics|April 24, 2013
DNA evidence for strong genome-wide pleiotropy of cognitive and learning abilitiesMaciej Trzaskowski, Oliver S P Davis, John C DeFries, et al.Journal of Developmental and Behavioral Pediatrics : JDBP|September 4, 2010
Etiologies and molecular mechanisms of communication disordersShelley D Smith, Elena Grigorenko, Erik Willcutt, et al.Pageof 9