- American Psychotherapy and Medical Hypnosis Associationwww.apmha.com
- American Society of Clinical Hypnosiswww.asch.net
- National Institute of Mental Healthwww.nimh.nih.gov
- National Institutes of Healthwww.health.nih.gov
- The American Board of Hypnotherapy and Neuro-Linguistic Programmingwww.abh-abnlp.com
