academic article

• Summer birth and the deficit syndrome of schizophrenia..  The American journal of psychiatry.  155:1221-1226. 1998
• Visual information-processing impairments in deficit and nondeficit schizophrenia..  The American journal of psychiatry.  154:647-654. 1997
• The deficit syndrome in the DSM-IV Field Trial. Part II. Depressive episodes and persecutory beliefs..  Schizophrenia research.  20:79-90. 1996
• The deficit syndrome in the DSM-IV Field Trial: I. Alcohol and other drug abuse..  Schizophrenia research.  20:69-77. 1996
• Neuroleptic treatment and negative symptoms in deficit and nondeficit schizophrenia..  Biological psychiatry.  38:64-67. 1995