The Center for Homelessness, Housing, and Health Equity Research (H3E) at the USC Suzanne Dworak-Peck School of Social Work conducts research to promote the discovery and dissemination of evidence-based solutions to reduce homelessness and health disparities. H3E research has been funded by the National Institutes of Health including the National Institute of Mental Health, the National Institutes on Drug Abuse, and the National Institute on Aging. H3E also partners with the Los Angeles Homeless Services Authority (LAHSA) to conduct the Greater Los Angeles Homeless Count annually, which is the largest unsheltered homeless count in the United States.