Risk factors of deficit and non-deficit schizophrenia: Results from a cross-sectional study Agnieszka Cyran; Patryk Piotrowski; Jerzy Samochowiec; Tomasz Gr¿¿lewski; B¿a¿ej Misiak;

Negative Symptoms: A Brief Story and Advances in Spain William T. Carpenter Jr;

Defining negative symptoms remission in schizophrenia using the Brief Negative Symptom Scale Gurpreet Rekhi; Mei San Ang; Yiong Huak Chan; Emilio Fernandez-Egea; Brian Kirkpatrick; Jimmy Lee;