Jimenez-Murcia S, Granero R, Larrea ST, Sauvaget A, Grall-Bronnec M, Alvarez-Moya EM, Aguera Z, Aymami N, Gomez-Pena M, del Pino-Gutierrez A, Moragas L, Menchon JM, Fagundo AB, Sauchelli S, La Verde M, Aguglia E, Signorelli MS, Formoso JAF, Fernandez-Aranda F. Pathological gambling and substance use disorders: effects of early incidence and personality. Drugs Health Society. 2015 Jan;14(1):78. doi: 10.7202/1035550ar
Sorensen HT, Sabroe S, Olsen J, Rothman KJ, Gillman MW, Fisher P. Birth weight as a predictor of young men's intelligence. A historical cohort study. Ugeskr Laeger. 1999 Feb 8;161(6):791-3.