- American Medical Association www.ama-assn.org
- Everyday Health – Online Health Information www.everydayhealth.com
- National Institutes of Health www.health.nih.gov
- U.S. Department of Health & Human Services www.hhs.gov
- Centers for Disease Control and Preventionwww.cdc.gov
- Medline Pluswww.medlineplus.gov
- The Agency for Healthcare Research and Qualitywww.ahrq.gov
