Randomized comparison of olanzapine versus risperidone for the treatment of first-episode schizophrenia: 4-month outcomes. - Robinson DG; Woerner MG; Napolitano B; Patel RC; Sevy SM; Gunduz-Bruce H; Soto-Perello JM; Mendelowitz A; Khadivi A; Miller R; McCormack J; Lorell BS; et al. (The American journal of psychiatry, 2006)