Early vulnerabilities for psychiatric disorders in elementary schoolchildren from four Brazilian regions - Paula, Cristiane S.; Mari, Jair J.; Bordin, Isabel Altenfelder Santos; Miguel, Euripedes C.; Fortes, Isabela; Barroso, Natalia; Rohde, Luis Augusto; Coutinho, Evandro Silva Freire (Social psychiatry and psychiatric epidemiology, 2018)