- American Federation for Aging Research www.infoaging.org
- American Health Care Associationwww.ahcancal.org
- American Heart Associationwww.americanheart.org
- American Medical Association www.ama-assn.org
- American Red Cross www.redcross.org
- Center for disease Control www.cdc.gov
- National Institute of Health: Health Information www.nih.gov
- Texas Healthcare Associationwww.txhca.org
- Texas Health and Human services : Texas Health and Human Services www.hhs.texas.gov