“…In other studies (8, 15, 21, 27) the Research Diagnostic Criteria (RDC) (28) was used as the gold standard. The Comprehensive Psychopathological Rating Scale (CPRS‐Depression) (29), the Schedule of Affective Disorders and Schizophrenia (SADS) (30), the Present State Examination (PSE‐ID‐Catego) (31) and the ICD‐10 (32) have also been used as validation instruments. Some studies have included both major and minor depressive disorders in the definition of postpartum depression (8, 15, 17, 18, 21, 24, 27).…”