- Mayo Clinic — www.mayoclinic.com
- MedicinePlus® — www.medlineplus.gov
- National Institutes of Health (NIH) — www.nih.gov
- Centers for Disease Control and Prevention (CDC) — www.cdc.gov
- U.S. Food and Drug Administration (FD) — www.fda.gov
- National Cancer Institute — www.cancer.gov
- American Cancer Society — www.cancer.org
- ClinicalTrials — www.clinicaltrials.gov
- Agency for Healthcare Research and Auality (AHRQ) — www.ahrq.gov
- National Heart Lung and Blood Institute — www.nhlbi.nih.gov
- American Heart Association — www.americanheart.org
- American Diabetes Association — www.diabetes.org
- FamilyDoctor — www.familydoctor.org
