1Siris SG. Diagnosis of secondary depression in schizophrenia:Implications for DSM -- IV[J]. Schizophr Bull, 1991,17 (1):75 --98.
2Tollefson GD, Sanger TM, Lu Y, et al. Depressive signs and symptoms in schizophrenia[J]. Arch Gen Psychiatry,1998,55 (3) :250--258.
3Tollefson GD,Andersen SW,Tran P. The course of depressive symptoms in predicting relapse in schizophrenia: A double-- blind, randomized comparison of olanzapine and risperidone [J]. Biol Psychiatry, 1999,46(3) :365--373.
4Heald A, Morris J, Soni SD. Characterisation of depression in patientswith schizophrenia[J]. Indian J Med Res, 2008, 127 (6) :544--550.
5Johnson,D. A. W. The significance of depression in the prediction of relapse in chronic schizophrenia[J]. Br J Psyehol, 1988, 152:320--323.
6Sands J. R. , Harrow M. Depression during the longitudinal course of schizophrenia [J]. Schizophr Bull, 1999, 25 ( 1 ), 157--171.
7Addington D, Addington J. Attempted suicide and depression in schizophrenia[J]. Acta Psychiatr Stand,1992,85(4):288-- 291.
8Hohhausen E. A,Wiersma D, Knegtering R. H,et al. Psychopathology and cognition in schizophrenia spectrum disorders: the role of depressive symptoms[J]. Schizophr Res, 1999,39 (1) :65--71.
9Glazer W,Prusoff B,John K. Depression and social adjustment among chronic schizophrenic outpatients[-J]. J Nerv Ment Dis, 1981,169(11) ,712--717.
10Hafner H, Loffler W, Maurer K, et al. Depression negative symptoms, social stagnation and social decline in the early course of schizophrenia[J]. Acta Psychiatr Scand, 1999, 100 (2) :105--118.
3Addington D, Addington J, Schissel B. A depression rating scale for schizophrenics [J]. Schizophr Res, 1990, 3 (4) : 247 -251.
4Matthias J, Petra M, Ralf S, et al. The Calgary Depression Rating Scale for Schizophrenia. development and interrater reliability of a German version [ J] . J Psychiatr Res, 1999, 33:433-443.
5Sarro S. Cross-cultural adaptation and validation of the Spanish version of the Calgary Depression Scale for Schizophrenia [J]. Schizophr Res, 2004, 68 (2) : 349 -356.
6Kontaxakis VP. The Greek version of the Calgary Depression Scale for Schizophrenia[J]. Psychiatry Res, 2000, 94 (2): 163-171.
7Lancon C. Evaluation of depression in schizophrenia: psychometric properties of a French version of the Calgary Depression Scale [J]. Psychiatry Res, 1999, 89 (2) : 123 - 132.
8Eiber R , Even C. Actual approaches to.post-psychotic depression [J] .Encephale, 2001, 27 (4): 301-307.
10Bressan R, Chaves A, Shirakawa I, et al. Validity study of the Brasilian version of the Calgary Depression Scale for Schizophrenia [J]. Schizophr Res, 1998, 32 (1): 41 -49.
4Addington J, Shah H, Liu L, et al. Reliability and validity of the Calgary Depression Scale for Schizophrenia(CDSS) in youth at clinical high risk for psychosis [J]. Schizophr Res, 2014, 153( 1 - 3):64 -67.
5Sanchez-Gistau V, Baeza I, Arango C, et al. Predictors of suicide attempt in early-onset, first-episode psychoses: a longitudinal 24- month follow-up study [J]. J Clin Psychiatry, 2013, 74 (1) : 59 - 66.
6Harvey PD. Mood symptoms, cognition, and everyday functioning: in major depression, bipolar disorder, and schizophrenia [ [J]. Innov- ClinNeurosci, 2011,8(10) : 14 - 18.
7Snmez N, Romm KL, Andreassen OA, et al. Depressive symptoms in first-episode psychosis: a one year follow-up study [J]. BMC Psychiatry, 2013, 13(4) : 106 - 114.
8Romm KL, Rossberg Jl, Berg AO, et al. Depression and depressive symptoms in first episode psychosis [J]. J Nerv Ment Dis, 2010, 198(1):67 -71.
9Heiden W, Konnecke R, Maurer K, et al. Depression in the long- term course of schizophrenia [ [J]. Eur Arch Psychiatry ClinNeuros- ci, 2005, 255(I) : 174 - 184.
10Xiao WD, Liu H, Zhang HY, et al. The reliability and validity of the Chinese version of the Calgary Depression Scale for Schizo- phrenia (CDSS-C) [J]. Aust N Z J Psychiatry, 2009,43(6): 550 - 555.
