Integrating verbal fluency with executive functions: Evidence from twin studies in adolescence and middle age.
Gustavson DE, Panizzon MS, Franz CE, Reynolds CA, Corley RP, Hewitt JK, Lyons MJ, Kremen WS, Friedman NP. Integrating verbal fluency with executive functions: Evidence from twin studies in adolescence and middle age. J Exp Psychol Gen. 2019 Dec; 148(12):2104-2119.