Pelizza, Lorenzo, et al. “Negative Symptom Configuration in Patients With First Episode Affective Psychosis: Findings from the 1-Year Follow-up of the ‘Parma Early Psychosis’ Program”. Acta Biomedica Atenei Parmensis, vol. 92, no. 4, Sept. 2021, p. e2021224, https://doi.org/10.23750/abm.v92i4.11115.