- American Medical Association www.ama-assn.org
- American Health Care Association www.ahcancal.org
- Home Care Association of Americawww.hcaoa.org
- American Association for Homecarewww.aahomecare.org
- U.S. Department of Health & Human Services www.hhs.gov
- MedicineNet – Health and Medical Information Produced by Doctors www.medicinenet.com
