Ventricular enlargement in schizophrenia is associated with a genetic polymorphism at the interleukin-1 receptor antagonist gene. - Sergi Papiol; Vicente Molina; Manuel Desco; Araceli Rosa; Santiago Reig; Juan D. Gispert; Javier Sanz; Tomás Palomo; Lourdes Fañanás (NeuroImage, 2005)