George Moukas; Philippos Gourzis; Ion N. Beratis; Stavroula Beratis. (2010). Sex differences in prepsychotic “prodromal” symptomatology and its association with Positive and Negative Syndrome Scale active phase psychopathology in male and female patients. , 51(5), 0–551.
doi:10.1016/j.comppsych.2009.11.003