- American Psychological Associationwww.apa.org
- Centers for Medicare & Medicaid Serviceswww.cms.gov
- National Council on Disabilitywww.ncd.gov
- National Institute of Mental Healthwww.nimh.nih.gov
- Mayo Clinicwww.mayoclinic.com
- Verywell mindwww.verywellmind.com
