Impact of parental marital status on self-harm in Chinese primary school students: the mediating role of depression and the moderating effect of classmate relationships 1Department of Psychiatry, the First Affiliated Hospital of ChongQing Medical University, ChongQing, Yuzhong, China 2Psychiatric Center, the First Affiliated Hospital of ChongQing Medical University, ChongQing, Yuzhong, China 3Mental Health Center, University-Town Hospital of ChongQing Medical University, ChongQing, GaoXin,...