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