Kostaras, Panagiotis Martinaki, Sofia Asimopoulos, Charis and Maltezou, Maria Papageorgiou, Charalambos, The use of the Symptom Checklist 90-R in exploring the factor structure of mental disorders and the neglected fact of comorbidity., Psychiatry Research, (294), 2020, Elsevier Ireland Ltd, 0165-1781