Is the excess risk of psychosis-like experiences in urban areas attributable to altered cognitive development?

Citation:

Stefanis NC, Delespaul P, Smyrnis N, Lembesi A, Avramopoulos DA, Evdokimidis IK, Stefanis CN, Van Os J. Is the excess risk of psychosis-like experiences in urban areas attributable to altered cognitive development?. Social Psychiatry and Psychiatric Epidemiology. 2004;39:364–368.