48.4 PREVALENCE, COMORBIDITY, AND PSYCHOSOCIAL CORRELATES OF PSYCHOPATHOLOGY AND SUBSTANCE USE DISORDERS AMONG HOMELESS TRANSITIONAL-AGE YOUTH: PRELIMINARY FINDINGS. - Burke, Colin W.; Firmin, Elizabeth S.; Ducharme, Peter; Wilens, Timothy E. (Journal of the American Academy of Child & Adolescent Psychiatry, 2020)