Dr Mirela Marcu treats patients with post-traumatic stress disorder (PTSD), substance abuse disorder, dual diagnoses, and immigrants who have been victimized by political unrest. She offers cultural and community psychiatry treatment for individuals who are homeless or underprivileged who have persistent and severe mental illness. Her research interest is interprofessional education and the impact of collaborative care on the quality of patient care. Dr Marcu is an associate professor in the Department of Psychiatry at Saint Louis University School of Medicine. She is a member of the American Psychiatric Association, the American Society of Addiction Medicine, and the American Association of Community Psychiatry.