Ferrer M, Garcia-Esteban R, Iniguez C, Costa O, Fernandez-Somoano A, Rodríguez-Delhi C, Ibarluzea J, Lertxundi A, Tonne C, Sunyer J, Julvez J. Head circumference and child ADHD symptoms and cognitive functioning: results from a large population-based cohort study. Eur Child Adolesc Psychiatry. 2019 Mar;28(3):377-88. doi: 10.1007/s00787-018-1202-4
Ramos R, Freire C, Julvez J, Fernandez MF, Garcia-Esteban R, Torrent M, Sunyer J, Olea N. Association of ADHD symptoms and social competence with cognitive status in preschoolers. Eur Child Adolesc Psychiatry. 2013 Mar;22(3):153-64. doi: 10.1007/s00787-012-0334-1
Poole WK, Pollack M, Rapoport I, Williams V, Koch MA, Rao AV, Bartel DA. Use of Multivariate Methods in Quantifying the Variability in the Perception of Neonatal Intensive Care Unit Characteristics in Nine Hospitals in the Washington, DC Area: the NIH-DC Initiative to Reduce Infant Mortality in Minority Populations in the District of Columbia. Interstat. 2002 Jan 1.