1. Chinese version of the Kiddie-Schedule for Affective Disorders and Schizophrenia- epidemiology version (K-SADS-E) Development of the Chinese K-SADS-E was carried out by the Child Psychiatry Research Group in Taiwan, which included a two-stage translation and modification of several items with psycholinguistic equivalents relevant to the Taiwanese culture. The K-SADS-E has been widely used in a variety of studies on the mental illness of children and adolescents in Taiwan (Gau et al., 2005). Mother will be interviewed independently by two separate interviewers to make child's psychiatric diagnoses.